51612452712 has 48 divisors (see below), whose sum is σ = 139881551940. Its totient is φ = 17192110848.

The previous prime is 51612452687. The next prime is 51612452713. The reversal of 51612452712 is 21725421615.

51612452712 is a `hidden beast` number, since 5 + 1 + 6 + 124 + 527 + 1 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 42282051876 + 9330400836 = 205626^2 + 96594^2 .

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

It is not an unprimeable number, because it can be changed into a prime (51612452713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146943 + ... + 353294.

Almost surely, 2^51612452712 is an apocalyptic number.

It is an amenable number.

51612452712 is an abundant number, since it is smaller than the sum of its proper divisors (88269099228).

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

51612452712 is a wasteful number, since it uses less digits than its factorization.

51612452712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501682 (or 501675 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The spelling of 51612452712 in words is "fifty-one billion, six hundred twelve million, four hundred fifty-two thousand, seven hundred twelve".