117861291968653 has 16 divisors (see below), whose sum is σ = 124107681600000. Its totient is φ = 111619224910512.

The previous prime is 117861291968639. The next prime is 117861291968687. The reversal of 117861291968653 is 356869192168711.

It is a cyclic number.

It is not a de Polignac number, because 117861291968653 - 2²⁹ = 117860755097741 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 (117861291969653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741807126 + ... + 741965992.

It is an arithmetic number, because the mean of its divisors is an integer number (7756730100000).

Almost surely, 2^{117861291968653} is an apocalyptic number.

It is an amenable number.

117861291968653 is a deficient number, since it is larger than the sum of its proper divisors (6246389631347).

117861291968653 is a wasteful number, since it uses less digits than its factorization.

117861291968653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172224.

The product of its digits is 235146240, while the sum is 73.

The spelling of 117861291968653 in words is "one hundred seventeen trillion, eight hundred sixty-one billion, two hundred ninety-one million, nine hundred sixty-eight thousand, six hundred fifty-three".