51137298528 has 192 divisors, whose sum is σ = 143824584960. Its totient is φ = 15853289472.

The previous prime is 51137298523. The next prime is 51137298529. The reversal of 51137298528 is 82589273115.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51137298523) 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, 56380251 + ... + 56381157.

It is an arithmetic number, because the mean of its divisors is an integer number (749086380).

Almost surely, 2^51137298528 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 51137298528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71912292480).

51137298528 is an abundant number, since it is smaller than the sum of its proper divisors (92687286432).

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

51137298528 is a wasteful number, since it uses less digits than its factorization.

51137298528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309 (or 1301 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 51.

The spelling of 51137298528 in words is "fifty-one billion, one hundred thirty-seven million, two hundred ninety-eight thousand, five hundred twenty-eight".