7678681113 has 4 divisors (see below), whose sum is σ = 10238241488. Its totient is φ = 5119120740.

The previous prime is 7678681093. The next prime is 7678681141. The reversal of 7678681113 is 3111868767.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 7678681113 - 2⁵ = 7678681081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7678481113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1279780183 + ... + 1279780188.

It is an arithmetic number, because the mean of its divisors is an integer number (2559560372).

Almost surely, 2^7678681113 is an apocalyptic number.

It is an amenable number.

7678681113 is a deficient number, since it is larger than the sum of its proper divisors (2559560375).

7678681113 is a wasteful number, since it uses less digits than its factorization.

7678681113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559560374.

The product of its digits is 338688, while the sum is 48.

The square root of 7678681113 is about 87628.0840427314. The cubic root of 7678681113 is about 1972.8567135875.

The spelling of 7678681113 in words is "seven billion, six hundred seventy-eight million, six hundred eighty-one thousand, one hundred thirteen".