25745874140 has 24 divisors (see below), whose sum is σ = 61790098272. Its totient is φ = 8827156800.

The previous prime is 25745874103. The next prime is 25745874181. The reversal of 25745874140 is 4147854752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91949411 + ... + 91949690.

It is an arithmetic number, because the mean of its divisors is an integer number (2574587428).

Almost surely, 2^25745874140 is an apocalyptic number.

25745874140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25745874140 is an abundant number, since it is smaller than the sum of its proper divisors (36044224132).

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

25745874140 is a wasteful number, since it uses less digits than its factorization.

25745874140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183899117 (or 183899115 counting only the distinct ones).

The product of its (nonzero) digits is 1254400, while the sum is 47.

The spelling of 25745874140 in words is "twenty-five billion, seven hundred forty-five million, eight hundred seventy-four thousand, one hundred forty".