51678463837 has 32 divisors (see below), whose sum is σ = 69692442624. Its totient is φ = 37007409600.

The previous prime is 51678463807. The next prime is 51678463847. The reversal of 51678463837 is 73836487615.

It is not a de Polignac number, because 51678463837 - 2¹⁵ = 51678431069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51678463807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113512 + ... + 340942.

It is an arithmetic number, because the mean of its divisors is an integer number (2177888832).

Almost surely, 2^51678463837 is an apocalyptic number.

It is an amenable number.

51678463837 is a deficient number, since it is larger than the sum of its proper divisors (18013978787).

51678463837 is a wasteful number, since it uses less digits than its factorization.

51678463837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227689.

The product of its digits is 20321280, while the sum is 58.

It can be divided in two parts, 51678 and 463837, that added together give a palindrome (515515).

The spelling of 51678463837 in words is "fifty-one billion, six hundred seventy-eight million, four hundred sixty-three thousand, eight hundred thirty-seven".