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1214127640572 = 2237112375236173
BaseRepresentation
bin10001101010101111101…
…001011000111111111100
311022001212122100121111120
4101222233221120333330
5124343013133444242
62325432412550540
7153501133444350
oct21525751307774
94261778317446
101214127640572
114289aa445600
12177380a82450
138a651497442
1442a9a949460
15218b01331ec
hex11aafa58ffc

1214127640572 has 288 divisors, whose sum is σ = 3662529808896. Its totient is φ = 306198351360.

The previous prime is 1214127640571. The next prime is 1214127640613. The reversal of 1214127640572 is 2750467214121.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214127640571) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 196680478 + ... + 196686650.

It is an arithmetic number, because the mean of its divisors is an integer number (12717117392).

Almost surely, 21214127640572 is an apocalyptic number.

1214127640572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1214127640572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1831264904448).

1214127640572 is an abundant number, since it is smaller than the sum of its proper divisors (2448402168324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1214127640572 is a wasteful number, since it uses less digits than its factorization.

1214127640572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6769 (or 6756 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 1214127640572 in words is "one trillion, two hundred fourteen billion, one hundred twenty-seven million, six hundred forty thousand, five hundred seventy-two".