117554074491 has 32 divisors (see below), whose sum is σ = 187454131200. Its totient is φ = 64068960384.

The previous prime is 117554074471. The next prime is 117554074501. The reversal of 117554074491 is 194470455711.

It is a happy number.

It is not a de Polignac number, because 117554074491 - 2⁵ = 117554074459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117554074491.

It is not an unprimeable number, because it can be changed into a prime (117554074441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180120 + ... + 517253.

It is an arithmetic number, because the mean of its divisors is an integer number (5857941600).

Almost surely, 2^117554074491 is an apocalyptic number.

117554074491 is a deficient number, since it is larger than the sum of its proper divisors (69900056709).

117554074491 is a wasteful number, since it uses less digits than its factorization.

117554074491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697755.

The product of its (nonzero) digits is 705600, while the sum is 48.

The spelling of 117554074491 in words is "one hundred seventeen billion, five hundred fifty-four million, seventy-four thousand, four hundred ninety-one".