256507724562374 has 8 divisors (see below), whose sum is σ = 384933432132480. Its totient is φ = 128196580518216.

The previous prime is 256507724562373. The next prime is 256507724562443. The reversal of 256507724562374 is 473265427705652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 256507724562374.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256507724562373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28640875889 + ... + 28640884844.

It is an arithmetic number, because the mean of its divisors is an integer number (48116679016560).

Almost surely, 2^{256507724562374} is an apocalyptic number.

256507724562374 is a deficient number, since it is larger than the sum of its proper divisors (128425707570106).

256507724562374 is a wasteful number, since it uses less digits than its factorization.

256507724562374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57281762974.

The product of its (nonzero) digits is 592704000, while the sum is 65.

The spelling of 256507724562374 in words is "two hundred fifty-six trillion, five hundred seven billion, seven hundred twenty-four million, five hundred sixty-two thousand, three hundred seventy-four".