1256326104000 has 224 divisors, whose sum is σ = 4525516000512. Its totient is φ = 304563840000.

The previous prime is 1256326103987. The next prime is 1256326104037. The reversal of 1256326104000 is 4016236521.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2115406 + ... + 2643405.

Almost surely, 2^{1256326104000} is an apocalyptic number.

1256326104000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1256326104000 is an abundant number, since it is smaller than the sum of its proper divisors (3269189896512).

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

1256326104000 is a wasteful number, since it uses less digits than its factorization.

1256326104000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4758852 (or 4758832 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 1256326104000 in words is "one trillion, two hundred fifty-six billion, three hundred twenty-six million, one hundred four thousand".