51988658915 has 8 divisors (see below), whose sum is σ = 63087361920. Its totient is φ = 41123612992.

The previous prime is 51988658899. The next prime is 51988658923. The reversal of 51988658915 is 51985688915.

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 51988658915 - 2⁴ = 51988658899 is a prime.

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, 58413779 + ... + 58414668.

It is an arithmetic number, because the mean of its divisors is an integer number (7885920240).

Almost surely, 2^51988658915 is an apocalyptic number.

51988658915 is a deficient number, since it is larger than the sum of its proper divisors (11098703005).

51988658915 is a wasteful number, since it uses less digits than its factorization.

51988658915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116828541.

The product of its digits is 31104000, while the sum is 65.

The spelling of 51988658915 in words is "fifty-one billion, nine hundred eighty-eight million, six hundred fifty-eight thousand, nine hundred fifteen".