51421084565760 has 432 divisors, whose sum is σ = 218968122906624. Its totient is φ = 10849283555328.

The previous prime is 51421084565723. The next prime is 51421084565923. The reversal of 51421084565760 is 6756548012415.

51421084565760 is a `hidden beast` number, since 5 + 1 + 4 + 2 + 1 + 0 + 8 + 4 + 565 + 76 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 51421084565697 and 51421084565706.

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, 23477152 + ... + 25573791.

Almost surely, 2^{51421084565760} is an apocalyptic number.

It is an amenable number.

51421084565760 is an abundant number, since it is smaller than the sum of its proper divisors (167547038340864).

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

51421084565760 is a wasteful number, since it uses less digits than its factorization.

51421084565760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49050990 (or 49050973 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 54.

The spelling of 51421084565760 in words is "fifty-one trillion, four hundred twenty-one billion, eighty-four million, five hundred sixty-five thousand, seven hundred sixty".