117431642477 has 8 divisors (see below), whose sum is σ = 117923510976. Its totient is φ = 116940045312.

The previous prime is 117431642467. The next prime is 117431642513. The reversal of 117431642477 is 774246134711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 117431642477 - 2⁶ = 117431642413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117431642417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 824018 + ... + 955964.

It is an arithmetic number, because the mean of its divisors is an integer number (14740438872).

Almost surely, 2^117431642477 is an apocalyptic number.

It is an amenable number.

117431642477 is a deficient number, since it is larger than the sum of its proper divisors (491868499).

117431642477 is a wasteful number, since it uses less digits than its factorization.

117431642477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135667.

The product of its digits is 790272, while the sum is 47.

The spelling of 117431642477 in words is "one hundred seventeen billion, four hundred thirty-one million, six hundred forty-two thousand, four hundred seventy-seven".