25674534140 has 12 divisors (see below), whose sum is σ = 53916521736. Its totient is φ = 10269813648.

The previous prime is 25674534091. The next prime is 25674534157. The reversal of 25674534140 is 4143547652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641863334 + ... + 641863373.

It is an arithmetic number, because the mean of its divisors is an integer number (4493043478).

Almost surely, 2^25674534140 is an apocalyptic number.

25674534140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25674534140 is an abundant number, since it is smaller than the sum of its proper divisors (28241987596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25674534140 is a wasteful number, since it uses less digits than its factorization.

25674534140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283726716 (or 1283726714 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 41.

The spelling of 25674534140 in words is "twenty-five billion, six hundred seventy-four million, five hundred thirty-four thousand, one hundred forty".