256745074152412 has 24 divisors (see below), whose sum is σ = 449747468278416. Its totient is φ = 128245839068928.

The previous prime is 256745074152361. The next prime is 256745074152451. The reversal of 256745074152412 is 214251470547652.

It is a congruent number.

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, 19527958 + ... + 29913730.

It is an arithmetic number, because the mean of its divisors is an integer number (18739477844934).

Almost surely, 2^{256745074152412} is an apocalyptic number.

It is an amenable number.

256745074152412 is a deficient number, since it is larger than the sum of its proper divisors (193002394126004).

256745074152412 is a wasteful number, since it uses less digits than its factorization.

256745074152412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10391877 (or 10391875 counting only the distinct ones).

The product of its (nonzero) digits is 18816000, while the sum is 55.

The spelling of 256745074152412 in words is "two hundred fifty-six trillion, seven hundred forty-five billion, seventy-four million, one hundred fifty-two thousand, four hundred twelve".