51756260920 has 64 divisors (see below), whose sum is σ = 143325040320. Its totient is φ = 16380002304.

The previous prime is 51756260909. The next prime is 51756260921. The reversal of 51756260920 is 2906265715.

51756260920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×51756260920³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51756260921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7105737 + ... + 7113016.

It is an arithmetic number, because the mean of its divisors is an integer number (2239453755).

Almost surely, 2^51756260920 is an apocalyptic number.

It is an amenable number.

51756260920 is an abundant number, since it is smaller than the sum of its proper divisors (91568779400).

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

51756260920 is a wasteful number, since it uses less digits than its factorization.

51756260920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14218784 (or 14218780 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 51756260920 in words is "fifty-one billion, seven hundred fifty-six million, two hundred sixty thousand, nine hundred twenty".