51007685472 has 60 divisors (see below), whose sum is σ = 150012193716. Its totient is φ = 17002560960.

The previous prime is 51007685461. The next prime is 51007685483. The reversal of 51007685472 is 27458670015.

51007685472 is a `hidden beast` number, since 5 + 100 + 76 + 8 + 5 + 472 = 666.

It is an interprime number because it is at equal distance from previous prime (51007685461) and next prime (51007685483).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9836854 + ... + 9842037.

Almost surely, 2^51007685472 is an apocalyptic number.

It is an amenable number.

51007685472 is an abundant number, since it is smaller than the sum of its proper divisors (99004508244).

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

51007685472 is a wasteful number, since it uses less digits than its factorization.

51007685472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19678913 (or 19678896 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 51007685472 in words is "fifty-one billion, seven million, six hundred eighty-five thousand, four hundred seventy-two".