256507137513035 has 8 divisors (see below), whose sum is σ = 314966903737200. Its totient is φ = 200433484196064.

The previous prime is 256507137512981. The next prime is 256507137513071. The reversal of 256507137513035 is 530315731705652.

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

It is a cyclic number.

It is not a de Polignac number, because 256507137513035 - 2¹² = 256507137508939 is a prime.

It is a super-2 number, since 2×256507137513035² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 596528226560 + ... + 596528226989.

It is an arithmetic number, because the mean of its divisors is an integer number (39370862967150).

Almost surely, 2^{256507137513035} is an apocalyptic number.

256507137513035 is a deficient number, since it is larger than the sum of its proper divisors (58459766224165).

256507137513035 is a wasteful number, since it uses less digits than its factorization.

256507137513035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193056453597.

The product of its (nonzero) digits is 9922500, while the sum is 53.

The spelling of 256507137513035 in words is "two hundred fifty-six trillion, five hundred seven billion, one hundred thirty-seven million, five hundred thirteen thousand, thirty-five".