249421331296 has 48 divisors (see below), whose sum is σ = 494455304448. Its totient is φ = 123845904000.

The previous prime is 249421331273. The next prime is 249421331317. The reversal of 249421331296 is 692133124942.

It is a happy number.

249421331296 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×249421331296² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21076101 + ... + 21087931.

It is an arithmetic number, because the mean of its divisors is an integer number (10301152176).

Almost surely, 2^249421331296 is an apocalyptic number.

It is an amenable number.

249421331296 is a deficient number, since it is larger than the sum of its proper divisors (245033973152).

249421331296 is a wasteful number, since it uses less digits than its factorization.

249421331296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16355 (or 16347 counting only the distinct ones).

The product of its digits is 559872, while the sum is 46.

The spelling of 249421331296 in words is "two hundred forty-nine billion, four hundred twenty-one million, three hundred thirty-one thousand, two hundred ninety-six".