51378947929324 has 24 divisors (see below), whose sum is σ = 91651100748480. Its totient is φ = 25197372551184.

The previous prime is 51378947929319. The next prime is 51378947929381. The reversal of 51378947929324 is 42392974987315.

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, 556629634 + ... + 556721929.

It is an arithmetic number, because the mean of its divisors is an integer number (3818795864520).

Almost surely, 2^{51378947929324} is an apocalyptic number.

It is an amenable number.

51378947929324 is a deficient number, since it is larger than the sum of its proper divisors (40272152819156).

51378947929324 is a wasteful number, since it uses less digits than its factorization.

51378947929324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113351789 (or 1113351787 counting only the distinct ones).

The product of its digits is 823011840, while the sum is 73.

The spelling of 51378947929324 in words is "fifty-one trillion, three hundred seventy-eight billion, nine hundred forty-seven million, nine hundred twenty-nine thousand, three hundred twenty-four".