25872362434 has 24 divisors (see below), whose sum is σ = 41111172540. Its totient is φ = 12209679072.

The previous prime is 25872362431. The next prime is 25872362437. The reversal of 25872362434 is 43426327852.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25872362431) and next prime (25872362437).

It can be written as a sum of positive squares in 2 ways, for example, as 25855675209 + 16687225 = 160797^2 + 4085^2 .

It is not an unprimeable number, because it can be changed into a prime (25872362431) 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, 127612 + ... + 260824.

Almost surely, 2^25872362434 is an apocalyptic number.

25872362434 is a deficient number, since it is larger than the sum of its proper divisors (15238810106).

25872362434 is a wasteful number, since it uses less digits than its factorization.

25872362434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133522 (or 133503 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 46.

The spelling of 25872362434 in words is "twenty-five billion, eight hundred seventy-two million, three hundred sixty-two thousand, four hundred thirty-four".