51145490920392 has 160 divisors (see below), whose sum is σ = 160501616478720. Its totient is φ = 15079751544960.

The previous prime is 51145490920373. The next prime is 51145490920409. The reversal of 51145490920392 is 29302909454115.

51145490920392 is a `hidden beast` number, since 5 + 1 + 1 + 4 + 549 + 0 + 9 + 2 + 0 + 3 + 92 = 666.

It is a super-2 number, since 2×51145490920392² (a number of 28 digits) contains 22 as substring.

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 39 ways as a sum of consecutive naturals, for example, 96699688 + ... + 97227159.

It is an arithmetic number, because the mean of its divisors is an integer number (1003135102992).

Almost surely, 2^{51145490920392} is an apocalyptic number.

It is an amenable number.

51145490920392 is an abundant number, since it is smaller than the sum of its proper divisors (109356125558328).

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

51145490920392 is a wasteful number, since it uses less digits than its factorization.

51145490920392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193926913 (or 193926900 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 54.

The spelling of 51145490920392 in words is "fifty-one trillion, one hundred forty-five billion, four hundred ninety million, nine hundred twenty thousand, three hundred ninety-two".