1256375063272 has 32 divisors (see below), whose sum is σ = 2732414857920. Its totient is φ = 530409939840.

The previous prime is 1256375063233. The next prime is 1256375063291. The reversal of 1256375063272 is 2723605736521.

It is a super-2 number, since 2×1256375063272² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167423629 + ... + 167431132.

It is an arithmetic number, because the mean of its divisors is an integer number (85387964310).

Almost surely, 2^{1256375063272} is an apocalyptic number.

It is an amenable number.

1256375063272 is an abundant number, since it is smaller than the sum of its proper divisors (1476039794648).

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

1256375063272 is a wasteful number, since it uses less digits than its factorization.

1256375063272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334854841 (or 334854837 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 49.

The spelling of 1256375063272 in words is "one trillion, two hundred fifty-six billion, three hundred seventy-five million, sixty-three thousand, two hundred seventy-two".