51837625968 has 80 divisors (see below), whose sum is σ = 136046221056. Its totient is φ = 17004951040.

The previous prime is 51837625949. The next prime is 51837625993. The reversal of 51837625968 is 86952673815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1905196 + ... + 1932212.

Almost surely, 2^51837625968 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 51837625968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68023110528).

51837625968 is an abundant number, since it is smaller than the sum of its proper divisors (84208595088).

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

51837625968 is a wasteful number, since it uses less digits than its factorization.

51837625968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27662 (or 27656 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 60.

The spelling of 51837625968 in words is "fifty-one billion, eight hundred thirty-seven million, six hundred twenty-five thousand, nine hundred sixty-eight".