51679898504 has 48 divisors (see below), whose sum is σ = 104989925520. Its totient is φ = 23837960640.

The previous prime is 51679898449. The next prime is 51679898539. The reversal of 51679898504 is 40589897615.

It is a super-3 number, since 3×51679898504³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2437919 + ... + 2459025.

It is an arithmetic number, because the mean of its divisors is an integer number (2187290115).

Almost surely, 2^51679898504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51679898504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52494962760).

51679898504 is an abundant number, since it is smaller than the sum of its proper divisors (53310027016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51679898504 is a wasteful number, since it uses less digits than its factorization.

51679898504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22950 (or 22933 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 62.

The spelling of 51679898504 in words is "fifty-one billion, six hundred seventy-nine million, eight hundred ninety-eight thousand, five hundred four".