51086518454651 has 8 divisors (see below), whose sum is σ = 51101393187600. Its totient is φ = 51071644906272.

The previous prime is 51086518454617. The next prime is 51086518454663. The reversal of 51086518454651 is 15645481568015.

51086518454651 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 a de Polignac number, because none of the positive numbers 2^k-51086518454651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51086508454651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89948201 + ... + 90514373.

It is an arithmetic number, because the mean of its divisors is an integer number (6387674148450).

Almost surely, 2^{51086518454651} is an apocalyptic number.

51086518454651 is a deficient number, since it is larger than the sum of its proper divisors (14874732949).

51086518454651 is a wasteful number, since it uses less digits than its factorization.

51086518454651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592285.

The product of its (nonzero) digits is 23040000, while the sum is 59.

The spelling of 51086518454651 in words is "fifty-one trillion, eighty-six billion, five hundred eighteen million, four hundred fifty-four thousand, six hundred fifty-one".