117240017785 has 16 divisors (see below), whose sum is σ = 153531692352. Its totient is φ = 85235550400.

The previous prime is 117240017759. The next prime is 117240017801. The reversal of 117240017785 is 587710042711.

It is not a de Polignac number, because 117240017785 - 2¹⁷ = 117239886713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215179 + ... + 529888.

It is an arithmetic number, because the mean of its divisors is an integer number (9595730772).

Almost surely, 2^117240017785 is an apocalyptic number.

It is an amenable number.

117240017785 is a deficient number, since it is larger than the sum of its proper divisors (36291674567).

117240017785 is a wasteful number, since it uses less digits than its factorization.

117240017785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747944.

The product of its (nonzero) digits is 109760, while the sum is 43.

The spelling of 117240017785 in words is "one hundred seventeen billion, two hundred forty million, seventeen thousand, seven hundred eighty-five".