7889324139 has 12 divisors (see below), whose sum is σ = 11891155536. Its totient is φ = 5030873232.

The previous prime is 7889324117. The next prime is 7889324159. The reversal of 7889324139 is 9314239887.

It is not a de Polignac number, because 7889324139 - 2⁹ = 7889323627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7889324159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19056132 + ... + 19056545.

It is an arithmetic number, because the mean of its divisors is an integer number (990929628).

Almost surely, 2^7889324139 is an apocalyptic number.

7889324139 is a deficient number, since it is larger than the sum of its proper divisors (4001831397).

7889324139 is a wasteful number, since it uses less digits than its factorization.

7889324139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38112706 (or 38112703 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 7889324139 is about 88821.8674595395. The cubic root of 7889324139 is about 1990.7341498882.

The spelling of 7889324139 in words is "seven billion, eight hundred eighty-nine million, three hundred twenty-four thousand, one hundred thirty-nine".