249523870764 has 24 divisors (see below), whose sum is σ = 665396988928. Its totient is φ = 71292534480.

The previous prime is 249523870753. The next prime is 249523870777. The reversal of 249523870764 is 467078325942.

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, 1485261052 + ... + 1485261219.

Almost surely, 2^249523870764 is an apocalyptic number.

It is an amenable number.

249523870764 is an abundant number, since it is smaller than the sum of its proper divisors (415873118164).

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

249523870764 is a wasteful number, since it uses less digits than its factorization.

249523870764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970522285 (or 2970522283 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 57.

The spelling of 249523870764 in words is "two hundred forty-nine billion, five hundred twenty-three million, eight hundred seventy thousand, seven hundred sixty-four".