2309418681 has 16 divisors (see below), whose sum is σ = 3100646400. Its totient is φ = 1528932240.

The previous prime is 2309418679. The next prime is 2309418691. The reversal of 2309418681 is 1868149032.

It is not a de Polignac number, because 2309418681 - 2¹ = 2309418679 is a prime.

It is a super-2 number, since 2×2309418681² = 10666829288303559522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2309418691) 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, 332676 + ... + 339546.

It is an arithmetic number, because the mean of its divisors is an integer number (193790400).

Almost surely, 2^2309418681 is an apocalyptic number.

It is an amenable number.

2309418681 is a deficient number, since it is larger than the sum of its proper divisors (791227719).

2309418681 is a wasteful number, since it uses less digits than its factorization.

2309418681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7636.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 2309418681 is about 48056.4114453004. The cubic root of 2309418681 is about 1321.8055107959.

The spelling of 2309418681 in words is "two billion, three hundred nine million, four hundred eighteen thousand, six hundred eighty-one".