1270043650040 has 256 divisors, whose sum is σ = 3249049190400. Its totient is φ = 442785548800.

The previous prime is 1270043650039. The next prime is 1270043650049. The reversal of 1270043650040 is 400563400721.

It is a super-2 number, since 2×1270043650040² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1270043649979 and 1270043650006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270043650049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 379455647 + ... + 379458993.

It is an arithmetic number, because the mean of its divisors is an integer number (12691598400).

Almost surely, 2^{1270043650040} is an apocalyptic number.

1270043650040 is a gapful number since it is divisible by the number (10) 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 1270043650040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1624524595200).

1270043650040 is an abundant number, since it is smaller than the sum of its proper divisors (1979005540360).

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

1270043650040 is a wasteful number, since it uses less digits than its factorization.

1270043650040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3786 (or 3782 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 1270043650040 in words is "one trillion, two hundred seventy billion, forty-three million, six hundred fifty thousand, forty".