51898173452928 has 1536 divisors, whose sum is σ = 182847974400000. Its totient is φ = 13948526592000.

The previous prime is 51898173452837. The next prime is 51898173452987. The reversal of 51898173452928 is 82925437189815.

51898173452928 is a `hidden beast` number, since 5 + 1 + 8 + 9 + 8 + 1 + 73 + 4 + 529 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

Its product of digits (348364800) is a multiple of the sum of its prime divisors (1215).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 56968356793 + ... + 56968357703.

It is an arithmetic number, because the mean of its divisors is an integer number (119041650000).

Almost surely, 2^{51898173452928} is an apocalyptic number.

51898173452928 is a gapful number since it is divisible by the number (58) 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 51898173452928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91423987200000).

51898173452928 is an abundant number, since it is smaller than the sum of its proper divisors (130949800947072).

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

51898173452928 is a wasteful number, since it uses less digits than its factorization.

51898173452928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230 (or 1215 counting only the distinct ones).

The product of its digits is 348364800, while the sum is 72.

The spelling of 51898173452928 in words is "fifty-one trillion, eight hundred ninety-eight billion, one hundred seventy-three million, four hundred fifty-two thousand, nine hundred twenty-eight".