51715365576 has 192 divisors, whose sum is σ = 161624548800. Its totient is φ = 13698736128.

The previous prime is 51715365529. The next prime is 51715365617. The reversal of 51715365576 is 67556351715.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1320160 + ... + 1358768.

It is an arithmetic number, because the mean of its divisors is an integer number (841794525).

Almost surely, 2^51715365576 is an apocalyptic number.

51715365576 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51715365576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80812274400).

51715365576 is an abundant number, since it is smaller than the sum of its proper divisors (109909183224).

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

51715365576 is a wasteful number, since it uses less digits than its factorization.

51715365576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38716 (or 38705 counting only the distinct ones).

The product of its digits is 3307500, while the sum is 51.

The spelling of 51715365576 in words is "fifty-one billion, seven hundred fifteen million, three hundred sixty-five thousand, five hundred seventy-six".