117571629861 has 48 divisors (see below), whose sum is σ = 206597289600. Its totient is φ = 62932598784.

The previous prime is 117571629817. The next prime is 117571629869. The reversal of 117571629861 is 168926175711.

117571629861 is a `hidden beast` number, since 1 + 1 + 7 + 5 + 7 + 1 + 629 + 8 + 6 + 1 = 666.

It is not a de Polignac number, because 117571629861 - 2¹⁵ = 117571597093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 117571629798 and 117571629807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117571629869) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 445276 + ... + 658341.

It is an arithmetic number, because the mean of its divisors is an integer number (4304110200).

Almost surely, 2^117571629861 is an apocalyptic number.

It is an amenable number.

117571629861 is a deficient number, since it is larger than the sum of its proper divisors (89025659739).

117571629861 is a wasteful number, since it uses less digits than its factorization.

117571629861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103738 (or 1103735 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 54.

The spelling of 117571629861 in words is "one hundred seventeen billion, five hundred seventy-one million, six hundred twenty-nine thousand, eight hundred sixty-one".