51876667815 has 64 divisors (see below), whose sum is σ = 100594897920. Its totient is φ = 22285670400.

The previous prime is 51876667813. The next prime is 51876667837.

It is a happy number.

51876667815 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51876667815 - 2¹ = 51876667813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51876667813) 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, 1154265 + ... + 1198365.

It is an arithmetic number, because the mean of its divisors is an integer number (1571795280).

Almost surely, 2^51876667815 is an apocalyptic number.

51876667815 is a deficient number, since it is larger than the sum of its proper divisors (48718230105).

51876667815 is a wasteful number, since it uses less digits than its factorization.

51876667815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44792.

The product of its digits is 16934400, while the sum is 60.

The spelling of 51876667815 in words is "fifty-one billion, eight hundred seventy-six million, six hundred sixty-seven thousand, eight hundred fifteen".