256730037652 has 24 divisors (see below), whose sum is σ = 490221234720. Its totient is φ = 116671601760.

The previous prime is 256730037647. The next prime is 256730037671.

256730037652 is nontrivially palindromic in base 10.

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, 378298 + ... + 810289.

It is an arithmetic number, because the mean of its divisors is an integer number (20425884780).

Almost surely, 2^256730037652 is an apocalyptic number.

256730037652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

256730037652 is a deficient number, since it is larger than the sum of its proper divisors (233491197068).

256730037652 is a wasteful number, since it uses less digits than its factorization.

256730037652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193511 (or 1193509 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 46.

The spelling of 256730037652 in words is "two hundred fifty-six billion, seven hundred thirty million, thirty-seven thousand, six hundred fifty-two".