117886790061 has 6 divisors (see below), whose sum is σ = 170280918990. Its totient is φ = 78591193368.

The previous prime is 117886790059. The next prime is 117886790089. The reversal of 117886790061 is 160097688711.

It can be written as a sum of positive squares in only one way, i.e., 109405485225 + 8481304836 = 330765^2 + 92094^2 .

It is not a de Polignac number, because 117886790061 - 2¹ = 117886790059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117886790561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6549266106 + ... + 6549266123.

It is an arithmetic number, because the mean of its divisors is an integer number (28380153165).

Almost surely, 2^117886790061 is an apocalyptic number.

It is an amenable number.

117886790061 is a deficient number, since it is larger than the sum of its proper divisors (52394128929).

117886790061 is a wasteful number, since it uses less digits than its factorization.

117886790061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13098532235 (or 13098532232 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 54.

The spelling of 117886790061 in words is "one hundred seventeen billion, eight hundred eighty-six million, seven hundred ninety thousand, sixty-one".