47817666512 has 80 divisors (see below), whose sum is σ = 116899517952. Its totient is φ = 18405759360.

The previous prime is 47817666503. The next prime is 47817666527. The reversal of 47817666512 is 21566671874.

47817666512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×47817666512² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131558 + ... + 336069.

Almost surely, 2^47817666512 is an apocalyptic number.

It is an amenable number.

47817666512 is an abundant number, since it is smaller than the sum of its proper divisors (69081851440).

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

47817666512 is a wasteful number, since it uses less digits than its factorization.

47817666512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467736 (or 467730 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 53.

The spelling of 47817666512 in words is "forty-seven billion, eight hundred seventeen million, six hundred sixty-six thousand, five hundred twelve".