1271727243150 has 192 divisors, whose sum is σ = 3964294268928. Its totient is φ = 262611394560.

The previous prime is 1271727243133. The next prime is 1271727243299. The reversal of 1271727243150 is 513427271721.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 349587 + ... + 1632686.

It is an arithmetic number, because the mean of its divisors is an integer number (20647365984).

Almost surely, 2^{1271727243150} is an apocalyptic number.

1271727243150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1271727243150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1982147134464).

1271727243150 is an abundant number, since it is smaller than the sum of its proper divisors (2692567025778).

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

1271727243150 is a wasteful number, since it uses less digits than its factorization.

1271727243150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982355 (or 1982350 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 42.

The spelling of 1271727243150 in words is "one trillion, two hundred seventy-one billion, seven hundred twenty-seven million, two hundred forty-three thousand, one hundred fifty".