117105297894 has 48 divisors (see below), whose sum is σ = 273332286864. Its totient is φ = 36020980800.

The previous prime is 117105297877. The next prime is 117105297917. The reversal of 117105297894 is 498792501711.

117105297894 is a `hidden beast` number, since 1 + 17 + 10 + 529 + 7 + 8 + 94 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 117105297894.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 676029 + ... + 831399.

It is an arithmetic number, because the mean of its divisors is an integer number (5694422643).

Almost surely, 2^117105297894 is an apocalyptic number.

117105297894 is an abundant number, since it is smaller than the sum of its proper divisors (156226988970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117105297894 is a wasteful number, since it uses less digits than its factorization.

117105297894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158613 (or 158610 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 54.

The spelling of 117105297894 in words is "one hundred seventeen billion, one hundred five million, two hundred ninety-seven thousand, eight hundred ninety-four".