51394684922 has 32 divisors (see below), whose sum is σ = 90965099520. Its totient is φ = 21311591040.

The previous prime is 51394684919. The next prime is 51394684927. The reversal of 51394684922 is 22948649315.

It is not an unprimeable number, because it can be changed into a prime (51394684927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3280604 + ... + 3296232.

It is an arithmetic number, because the mean of its divisors is an integer number (2842659360).

Almost surely, 2^51394684922 is an apocalyptic number.

51394684922 is a deficient number, since it is larger than the sum of its proper divisors (39570414598).

51394684922 is a wasteful number, since it uses less digits than its factorization.

51394684922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23246.

The product of its digits is 3732480, while the sum is 53.

The spelling of 51394684922 in words is "fifty-one billion, three hundred ninety-four million, six hundred eighty-four thousand, nine hundred twenty-two".