117172499654 has 16 divisors (see below), whose sum is σ = 211439097600. Its totient is φ = 47573796744.

The previous prime is 117172499651. The next prime is 117172499657. The reversal of 117172499654 is 456994271711.

It is an interprime number because it is at equal distance from previous prime (117172499651) and next prime (117172499657).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 117172499654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117172499651) 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, 220248794 + ... + 220249325.

It is an arithmetic number, because the mean of its divisors is an integer number (13214943600).

Almost surely, 2^117172499654 is an apocalyptic number.

117172499654 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

117172499654 is a deficient number, since it is larger than the sum of its proper divisors (94266597946).

117172499654 is a wasteful number, since it uses less digits than its factorization.

117172499654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440498147.

The product of its digits is 3810240, while the sum is 56.

The spelling of 117172499654 in words is "one hundred seventeen billion, one hundred seventy-two million, four hundred ninety-nine thousand, six hundred fifty-four".