249261584072 has 16 divisors (see below), whose sum is σ = 467399991600. Its totient is φ = 124621586320.

The previous prime is 249261584009. The next prime is 249261584083. The reversal of 249261584072 is 270485162942.

It is a self number, because there is not a number n which added to its sum of digits gives 249261584072.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1034954 + ... + 1252857.

It is an arithmetic number, because the mean of its divisors is an integer number (29212499475).

Almost surely, 2^249261584072 is an apocalyptic number.

It is an amenable number.

249261584072 is a deficient number, since it is larger than the sum of its proper divisors (218138407528).

249261584072 is a wasteful number, since it uses less digits than its factorization.

249261584072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301436 (or 2301432 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 249261584072 in words is "two hundred forty-nine billion, two hundred sixty-one million, five hundred eighty-four thousand, seventy-two".