51612013824 has 288 divisors, whose sum is σ = 160016747520. Its totient is φ = 14464106496.

The previous prime is 51612013819. The next prime is 51612013879. The reversal of 51612013824 is 42831021615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136179267 + ... + 136179645.

Almost surely, 2^51612013824 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 51612013824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80008373760).

51612013824 is an abundant number, since it is smaller than the sum of its proper divisors (108404733696).

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

51612013824 is a wasteful number, since it uses less digits than its factorization.

51612013824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825 (or 811 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 51612013824 in words is "fifty-one billion, six hundred twelve million, thirteen thousand, eight hundred twenty-four".