654931379331 has 8 divisors (see below), whose sum is σ = 970268710160. Its totient is φ = 436620919536.

The previous prime is 654931379309. The next prime is 654931379339. The reversal of 654931379331 is 133973139456.

It is a happy number.

654931379331 is a `hidden beast` number, since 6 + 5 + 493 + 1 + 37 + 93 + 31 = 666.

654931379331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 654931379331 - 2¹⁰ = 654931378307 is a prime.

It is a super-2 number, since 2×654931379331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654931379339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12128358850 + ... + 12128358903.

It is an arithmetic number, because the mean of its divisors is an integer number (121283588770).

Almost surely, 2^654931379331 is an apocalyptic number.

654931379331 is a deficient number, since it is larger than the sum of its proper divisors (315337330829).

654931379331 is a wasteful number, since it uses less digits than its factorization.

654931379331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24256717762 (or 24256717756 counting only the distinct ones).

The product of its digits is 5511240, while the sum is 54.

The spelling of 654931379331 in words is "six hundred fifty-four billion, nine hundred thirty-one million, three hundred seventy-nine thousand, three hundred thirty-one".