51497011392 has 28 divisors (see below), whose sum is σ = 136252509816. Its totient is φ = 17165670400.

The previous prime is 51497011373. The next prime is 51497011393. The reversal of 51497011392 is 29311079415.

51497011392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51497011393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134106609 + ... + 134106992.

Almost surely, 2^51497011392 is an apocalyptic number.

It is an amenable number.

51497011392 is an abundant number, since it is smaller than the sum of its proper divisors (84755498424).

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

51497011392 is a wasteful number, since it uses less digits than its factorization.

51497011392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268213616 (or 268213606 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 42.

The spelling of 51497011392 in words is "fifty-one billion, four hundred ninety-seven million, eleven thousand, three hundred ninety-two".