251949110044 has 24 divisors (see below), whose sum is σ = 468712011600. Its totient is φ = 118162684800.

The previous prime is 251949109981. The next prime is 251949110071. The reversal of 251949110044 is 440011949152.

251949110044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 251949109979 and 251949110006.

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, 16403809 + ... + 16419160.

It is an arithmetic number, because the mean of its divisors is an integer number (19529667150).

Almost surely, 2^251949110044 is an apocalyptic number.

It is an amenable number.

251949110044 is a deficient number, since it is larger than the sum of its proper divisors (216762901556).

251949110044 is a wasteful number, since it uses less digits than its factorization.

251949110044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32823093 (or 32823091 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 251949110044 in words is "two hundred fifty-one billion, nine hundred forty-nine million, one hundred ten thousand, forty-four".