117840847671 has 6 divisors (see below), whose sum is σ = 170214557760. Its totient is φ = 78560565108.

The previous prime is 117840847669. The next prime is 117840847681. The reversal of 117840847671 is 176748048711.

117840847671 is a `hidden beast` number, since 1 + 178 + 408 + 4 + 7 + 67 + 1 = 666.

It is not a de Polignac number, because 117840847671 - 2¹ = 117840847669 is a prime.

It is a super-2 number, since 2×117840847671² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117840847661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6546713751 + ... + 6546713768.

It is an arithmetic number, because the mean of its divisors is an integer number (28369092960).

Almost surely, 2^117840847671 is an apocalyptic number.

117840847671 is a deficient number, since it is larger than the sum of its proper divisors (52373710089).

117840847671 is a wasteful number, since it uses less digits than its factorization.

117840847671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13093427525 (or 13093427522 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 54.

The spelling of 117840847671 in words is "one hundred seventeen billion, eight hundred forty million, eight hundred forty-seven thousand, six hundred seventy-one".