47817913686 has 32 divisors (see below), whose sum is σ = 97145491968. Its totient is φ = 15689112480.

The previous prime is 47817913673. The next prime is 47817913747. The reversal of 47817913686 is 68631971874.

47817913686 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 2×47817913686² (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, 42201 + ... + 312116.

It is an arithmetic number, because the mean of its divisors is an integer number (3035796624).

Almost surely, 2^47817913686 is an apocalyptic number.

47817913686 is an abundant number, since it is smaller than the sum of its proper divisors (49327578282).

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

47817913686 is a wasteful number, since it uses less digits than its factorization.

47817913686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354676.

The product of its digits is 12192768, while the sum is 60.

The spelling of 47817913686 in words is "forty-seven billion, eight hundred seventeen million, nine hundred thirteen thousand, six hundred eighty-six".