61136898685 has 16 divisors (see below), whose sum is σ = 73913294592. Its totient is φ = 48544776000.

The previous prime is 61136898679. The next prime is 61136898707. The reversal of 61136898685 is 58689863116.

61136898685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61136898685 - 2⁵ = 61136898653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308235 + ... + 466135.

It is an arithmetic number, because the mean of its divisors is an integer number (4619580912).

Almost surely, 2^61136898685 is an apocalyptic number.

It is an amenable number.

61136898685 is a deficient number, since it is larger than the sum of its proper divisors (12776395907).

61136898685 is a wasteful number, since it uses less digits than its factorization.

61136898685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158484.

The product of its digits is 14929920, while the sum is 61.

The spelling of 61136898685 in words is "sixty-one billion, one hundred thirty-six million, eight hundred ninety-eight thousand, six hundred eighty-five".