51706000620 has 48 divisors (see below), whose sum is σ = 160863114720. Its totient is φ = 13788266688.

The previous prime is 51706000589. The next prime is 51706000639. The reversal of 51706000620 is 2600060715.

51706000620 is a `hidden beast` number, since 51 + 7 + 0 + 600 + 0 + 6 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47875387 + ... + 47876466.

It is an arithmetic number, because the mean of its divisors is an integer number (3351314890).

Almost surely, 2^51706000620 is an apocalyptic number.

It is an amenable number.

51706000620 is an abundant number, since it is smaller than the sum of its proper divisors (109157114100).

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

51706000620 is a wasteful number, since it uses less digits than its factorization.

51706000620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95751871 (or 95751863 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The spelling of 51706000620 in words is "fifty-one billion, seven hundred six million, six hundred twenty", and thus it is an aban number.