4861392931 has 6 divisors (see below), whose sum is σ = 5034808532. Its totient is φ = 4693757880.

The previous prime is 4861392911. The next prime is 4861392959. The reversal of 4861392931 is 1392931684.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-4861392931 is a prime.

It is a super-2 number, since 2×4861392931² = 47266282459153541522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4861392911) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2889405 + ... + 2891086.

Almost surely, 2^4861392931 is an apocalyptic number.

4861392931 is a deficient number, since it is larger than the sum of its proper divisors (173415601).

4861392931 is an equidigital number, since it uses as much as digits as its factorization.

4861392931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5780549 (or 5780520 counting only the distinct ones).

The product of its digits is 279936, while the sum is 46.

The square root of 4861392931 is about 69723.6898837117. The cubic root of 4861392931 is about 1694.0266634731.

The spelling of 4861392931 in words is "four billion, eight hundred sixty-one million, three hundred ninety-two thousand, nine hundred thirty-one".