25983712180 has 24 divisors (see below), whose sum is σ = 55726771968. Its totient is φ = 10172346528.

The previous prime is 25983712141. The next prime is 25983712187. The reversal of 25983712180 is 8121738952.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25983712180.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25983712187) 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, 13820184 + ... + 13822063.

It is an arithmetic number, because the mean of its divisors is an integer number (2321948832).

Almost surely, 2^25983712180 is an apocalyptic number.

25983712180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25983712180 is an abundant number, since it is smaller than the sum of its proper divisors (29743059788).

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

25983712180 is a wasteful number, since it uses less digits than its factorization.

25983712180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27642303 (or 27642301 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 25983712180 in words is "twenty-five billion, nine hundred eighty-three million, seven hundred twelve thousand, one hundred eighty".