47686740868 has 24 divisors (see below), whose sum is σ = 95157706392. Its totient is φ = 20714601984.

The previous prime is 47686740859. The next prime is 47686740877. The reversal of 47686740868 is 86804768674.

47686740868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (47686740859) and next prime (47686740877).

It can be written as a sum of positive squares in 4 ways, for example, as 791972164 + 46894768704 = 28142^2 + 216552^2 .

It is a super-2 number, since 2×47686740868² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26971255 + ... + 26973022.

It is an arithmetic number, because the mean of its divisors is an integer number (3964904433).

Almost surely, 2^47686740868 is an apocalyptic number.

It is an amenable number.

47686740868 is a deficient number, since it is larger than the sum of its proper divisors (47470965524).

47686740868 is a wasteful number, since it uses less digits than its factorization.

47686740868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53944311 (or 53944309 counting only the distinct ones).

The product of its (nonzero) digits is 86704128, while the sum is 64.

The spelling of 47686740868 in words is "forty-seven billion, six hundred eighty-six million, seven hundred forty thousand, eight hundred sixty-eight".