51926242745520 has 1280 divisors, whose sum is σ = 212653249320960. Its totient is φ = 11480511283200.

The previous prime is 51926242745513. The next prime is 51926242745561. The reversal of 51926242745520 is 2554724262915.

51926242745520 is a `hidden beast` number, since 5 + 1 + 9 + 2 + 6 + 2 + 42 + 74 + 5 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 24298661892 + ... + 24298664028.

It is an arithmetic number, because the mean of its divisors is an integer number (166135351032).

Almost surely, 2^{51926242745520} 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 51926242745520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106326624660480).

51926242745520 is an abundant number, since it is smaller than the sum of its proper divisors (160727006575440).

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

51926242745520 is a wasteful number, since it uses less digits than its factorization.

51926242745520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091 (or 3079 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 54.

The spelling of 51926242745520 in words is "fifty-one trillion, nine hundred twenty-six billion, two hundred forty-two million, seven hundred forty-five thousand, five hundred twenty".