51886268815 has 8 divisors (see below), whose sum is σ = 63318836880. Its totient is φ = 40805472192.

The previous prime is 51886268783. The next prime is 51886268843.

51886268815 is nontrivially palindromic in base 10.

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 51886268815 - 2⁵ = 51886268783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51886268815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87942534 + ... + 87943123.

It is an arithmetic number, because the mean of its divisors is an integer number (7914854610).

Almost surely, 2^51886268815 is an apocalyptic number.

51886268815 is a deficient number, since it is larger than the sum of its proper divisors (11432568065).

51886268815 is a wasteful number, since it uses less digits than its factorization.

51886268815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175885721.

The product of its digits is 7372800, while the sum is 58.

The spelling of 51886268815 in words is "fifty-one billion, eight hundred eighty-six million, two hundred sixty-eight thousand, eight hundred fifteen".