256469377024 has 112 divisors (see below), whose sum is σ = 590671895616. Its totient is φ = 109073203200.

The previous prime is 256469376967. The next prime is 256469377033. The reversal of 256469377024 is 420773964652.

256469377024 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (112).

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, 7494994 + ... + 7529134.

Almost surely, 2^256469377024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256469377024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295335947808).

256469377024 is an abundant number, since it is smaller than the sum of its proper divisors (334202518592).

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

256469377024 is an equidigital number, since it uses as much as digits as its factorization.

256469377024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34305 (or 34281 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 55.

The spelling of 256469377024 in words is "two hundred fifty-six billion, four hundred sixty-nine million, three hundred seventy-seven thousand, twenty-four".