51612657625512 has 64 divisors (see below), whose sum is σ = 146702644440000. Its totient is φ = 16804121084352.

The previous prime is 51612657625483. The next prime is 51612657625513. The reversal of 51612657625512 is 21552675621615.

51612657625512 is a `hidden beast` number, since 5 + 1 + 6 + 1 + 2 + 6 + 5 + 7 + 625 + 5 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (51612657625513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2778449887 + ... + 2778468462.

It is an arithmetic number, because the mean of its divisors is an integer number (2292228819375).

Almost surely, 2^{51612657625512} is an apocalyptic number.

It is an amenable number.

51612657625512 is an abundant number, since it is smaller than the sum of its proper divisors (95089986814488).

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

51612657625512 is a wasteful number, since it uses less digits than its factorization.

51612657625512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5556918407 (or 5556918397 counting only the distinct ones).

The product of its digits is 7560000, while the sum is 54.

The spelling of 51612657625512 in words is "fifty-one trillion, six hundred twelve billion, six hundred fifty-seven million, six hundred twenty-five thousand, five hundred twelve".