256379468190 has 64 divisors (see below), whose sum is σ = 622889754624. Its totient is φ = 67530492288.

The previous prime is 256379468183. The next prime is 256379468207. The reversal of 256379468190 is 91864973652.

It is a super-2 number, since 2×256379468190² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 716652 + ... + 1013088.

It is an arithmetic number, because the mean of its divisors is an integer number (9732652416).

It is a 1-persistent number, because it is pandigital, but 2⋅256379468190 = 512758936380 is not.

Almost surely, 2^256379468190 is an apocalyptic number.

256379468190 is an abundant number, since it is smaller than the sum of its proper divisors (366510286434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256379468190 is a wasteful number, since it uses less digits than its factorization.

256379468190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296801.

The product of its (nonzero) digits is 19595520, while the sum is 60.

The spelling of 256379468190 in words is "two hundred fifty-six billion, three hundred seventy-nine million, four hundred sixty-eight thousand, one hundred ninety".