256074651400 has 48 divisors (see below), whose sum is σ = 595408922640. Its totient is φ = 102423777600.

The previous prime is 256074651377. The next prime is 256074651473. The reversal of 256074651400 is 4156470652.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5008767 + ... + 5059633.

It is an arithmetic number, because the mean of its divisors is an integer number (12404352555).

Almost surely, 2^256074651400 is an apocalyptic number.

256074651400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256074651400 is an abundant number, since it is smaller than the sum of its proper divisors (339334271240).

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

256074651400 is a wasteful number, since it uses less digits than its factorization.

256074651400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76054 (or 76045 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 256074651400 in words is "two hundred fifty-six billion, seventy-four million, six hundred fifty-one thousand, four hundred".