51004753868544 has 432 divisors, whose sum is σ = 163252336859136. Its totient is φ = 14084969472000.

The previous prime is 51004753868533. The next prime is 51004753868561. The reversal of 51004753868544 is 44586835740015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 210128689 + ... + 210371279.

Almost surely, 2^{51004753868544} 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 51004753868544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81626168429568).

51004753868544 is an abundant number, since it is smaller than the sum of its proper divisors (112247582990592).

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

51004753868544 is a wasteful number, since it uses less digits than its factorization.

51004753868544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242812 (or 242791 counting only the distinct ones).

The product of its (nonzero) digits is 64512000, while the sum is 60.

The spelling of 51004753868544 in words is "fifty-one trillion, four billion, seven hundred fifty-three million, eight hundred sixty-eight thousand, five hundred forty-four".