51886518607 has 64 divisors (see below), whose sum is σ = 68105318400. Its totient is φ = 39165504000.

The previous prime is 51886518583. The next prime is 51886518623. The reversal of 51886518607 is 70681568815.

It is a happy number.

51886518607 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51886518607 - 2⁷ = 51886518479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51886518107) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17908983 + ... + 17911879.

It is an arithmetic number, because the mean of its divisors is an integer number (1064145600).

Almost surely, 2^51886518607 is an apocalyptic number.

51886518607 is a deficient number, since it is larger than the sum of its proper divisors (16218799793).

51886518607 is a wasteful number, since it uses less digits than its factorization.

51886518607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3077 (or 3063 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 55.

The spelling of 51886518607 in words is "fifty-one billion, eight hundred eighty-six million, five hundred eighteen thousand, six hundred seven".