25431679964 has 12 divisors (see below), whose sum is σ = 44921379384. Its totient is φ = 12597000144.

The previous prime is 25431679961. The next prime is 25431679981. The reversal of 25431679964 is 46997613452.

It is a super-3 number, since 3×25431679964³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25431679961) 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, 29709479 + ... + 29710334.

It is an arithmetic number, because the mean of its divisors is an integer number (3743448282).

Almost surely, 2^25431679964 is an apocalyptic number.

It is an amenable number.

25431679964 is a deficient number, since it is larger than the sum of its proper divisors (19489699420).

25431679964 is a wasteful number, since it uses less digits than its factorization.

25431679964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59419924 (or 59419922 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 56.

The spelling of 25431679964 in words is "twenty-five billion, four hundred thirty-one million, six hundred seventy-nine thousand, nine hundred sixty-four".