30117860681 has 16 divisors (see below), whose sum is σ = 31161398400. Its totient is φ = 29096496000.

The previous prime is 30117860677. The next prime is 30117860687. The reversal of 30117860681 is 18606871103.

It is a cyclic number.

It is not a de Polignac number, because 30117860681 - 2² = 30117860677 is a prime.

It is a super-2 number, since 2×30117860681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30117860687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 801410 + ... + 838148.

It is an arithmetic number, because the mean of its divisors is an integer number (1947587400).

Almost surely, 2^30117860681 is an apocalyptic number.

It is an amenable number.

30117860681 is a deficient number, since it is larger than the sum of its proper divisors (1043537719).

30117860681 is a wasteful number, since it uses less digits than its factorization.

30117860681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37040.

The product of its (nonzero) digits is 48384, while the sum is 41.

The spelling of 30117860681 in words is "thirty billion, one hundred seventeen million, eight hundred sixty thousand, six hundred eighty-one".