51151980322 has 4 divisors (see below), whose sum is σ = 76727970486. Its totient is φ = 25575990160.

The previous prime is 51151980293. The next prime is 51151980343. The reversal of 51151980322 is 22308915115.

51151980322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 49956273081 + 1195707241 = 223509^2 + 34579^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12787995079 + ... + 12787995082.

Almost surely, 2^51151980322 is an apocalyptic number.

51151980322 is a deficient number, since it is larger than the sum of its proper divisors (25575990164).

51151980322 is a wasteful number, since it uses less digits than its factorization.

51151980322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25575990163.

The product of its (nonzero) digits is 21600, while the sum is 37.

The spelling of 51151980322 in words is "fifty-one billion, one hundred fifty-one million, nine hundred eighty thousand, three hundred twenty-two".