51736474852 has 12 divisors (see below), whose sum is σ = 92023074556. Its totient is φ = 25444167840.

The previous prime is 51736474841. The next prime is 51736474877. The reversal of 51736474852 is 25847463715.

It can be written as a sum of positive squares in 2 ways, for example, as 22784091136 + 28952383716 = 150944^2 + 170154^2 .

It is a super-2 number, since 2×51736474852² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51736474852.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106017123 + ... + 106017610.

Almost surely, 2^51736474852 is an apocalyptic number.

It is an amenable number.

51736474852 is a deficient number, since it is larger than the sum of its proper divisors (40286599704).

51736474852 is a wasteful number, since it uses less digits than its factorization.

51736474852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212034798 (or 212034796 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 52.

The spelling of 51736474852 in words is "fifty-one billion, seven hundred thirty-six million, four hundred seventy-four thousand, eight hundred fifty-two".