256046560747 has 16 divisors (see below), whose sum is σ = 263281586400. Its totient is φ = 248860200960.

The previous prime is 256046560741. The next prime is 256046560793. The reversal of 256046560747 is 747065640652.

It is a cyclic number.

It is not a de Polignac number, because 256046560747 - 2²³ = 256038172139 is a prime.

It is a super-2 number, since 2×256046560747² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256046560694 and 256046560703.

It is not an unprimeable number, because it can be changed into a prime (256046560741) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14426863 + ... + 14444599.

It is an arithmetic number, because the mean of its divisors is an integer number (16455099150).

Almost surely, 2^256046560747 is an apocalyptic number.

256046560747 is a deficient number, since it is larger than the sum of its proper divisors (7235025653).

256046560747 is a wasteful number, since it uses less digits than its factorization.

256046560747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19086.

The product of its (nonzero) digits is 8467200, while the sum is 52.

The spelling of 256046560747 in words is "two hundred fifty-six billion, forty-six million, five hundred sixty thousand, seven hundred forty-seven".