51764720322 has 64 divisors (see below), whose sum is σ = 125306578944. Its totient is φ = 13935715200.

The previous prime is 51764720317. The next prime is 51764720323. The reversal of 51764720322 is 22302746715.

It is not an unprimeable number, because it can be changed into a prime (51764720323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 335179 + ... + 464622.

It is an arithmetic number, because the mean of its divisors is an integer number (1957915296).

Almost surely, 2^51764720322 is an apocalyptic number.

51764720322 is an abundant number, since it is smaller than the sum of its proper divisors (73541858622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51764720322 is a wasteful number, since it uses less digits than its factorization.

51764720322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799903.

The product of its (nonzero) digits is 141120, while the sum is 39.

The spelling of 51764720322 in words is "fifty-one billion, seven hundred sixty-four million, seven hundred twenty thousand, three hundred twenty-two".