51704438477 has 8 divisors (see below), whose sum is σ = 52365811200. Its totient is φ = 51043238064.

The previous prime is 51704438473. The next prime is 51704438507. The reversal of 51704438477 is 77483440715.

51704438477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51704438477 - 2² = 51704438473 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51704438473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627068 + ... + 704714.

It is an arithmetic number, because the mean of its divisors is an integer number (6545726400).

Almost surely, 2^51704438477 is an apocalyptic number.

It is an amenable number.

51704438477 is a deficient number, since it is larger than the sum of its proper divisors (661372723).

51704438477 is an equidigital number, since it uses as much as digits as its factorization.

51704438477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86155.

The product of its (nonzero) digits is 2634240, while the sum is 50.

The spelling of 51704438477 in words is "fifty-one billion, seven hundred four million, four hundred thirty-eight thousand, four hundred seventy-seven".