51417021744 has 90 divisors (see below), whose sum is σ = 158167004268. Its totient is φ = 15580910400.

The previous prime is 51417021739. The next prime is 51417021751. The reversal of 51417021744 is 44712071415.

51417021744 is a `hidden beast` number, since 514 + 1 + 70 + 2 + 1 + 74 + 4 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 51417021699 and 51417021708.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1458042 + ... + 1492889.

Almost surely, 2^51417021744 is an apocalyptic number.

It is an amenable number.

51417021744 is an abundant number, since it is smaller than the sum of its proper divisors (106749982524).

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

51417021744 is a wasteful number, since it uses less digits than its factorization.

51417021744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2950967 (or 2950947 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The spelling of 51417021744 in words is "fifty-one billion, four hundred seventeen million, twenty-one thousand, seven hundred forty-four".