1256882089632 has 144 divisors (see below), whose sum is σ = 3760665723360. Its totient is φ = 366378494976.

The previous prime is 1256882089627. The next prime is 1256882089649. The reversal of 1256882089632 is 2369802886521.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1730443 + ... + 2346954.

It is an arithmetic number, because the mean of its divisors is an integer number (26115734190).

Almost surely, 2^{1256882089632} is an apocalyptic number.

1256882089632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1256882089632 is an abundant number, since it is smaller than the sum of its proper divisors (2503783633728).

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

1256882089632 is a wasteful number, since it uses less digits than its factorization.

1256882089632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4077455 (or 4077434 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 60.

The spelling of 1256882089632 in words is "one trillion, two hundred fifty-six billion, eight hundred eighty-two million, eighty-nine thousand, six hundred thirty-two".