256945498852 has 24 divisors (see below), whose sum is σ = 540937893440. Its totient is φ = 104323736160.

The previous prime is 256945498847. The next prime is 256945498877. The reversal of 256945498852 is 258894549652.

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, 241489599 + ... + 241490662.

Almost surely, 2^256945498852 is an apocalyptic number.

It is an amenable number.

256945498852 is an abundant number, since it is smaller than the sum of its proper divisors (283992394588).

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

256945498852 is a wasteful number, since it uses less digits than its factorization.

256945498852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482980291 (or 482980289 counting only the distinct ones).

The product of its digits is 248832000, while the sum is 67.

The spelling of 256945498852 in words is "two hundred fifty-six billion, nine hundred forty-five million, four hundred ninety-eight thousand, eight hundred fifty-two".