25881245428180 has 24 divisors (see below), whose sum is σ = 56103861058560. Its totient is φ = 10018546617120.

The previous prime is 25881245428177. The next prime is 25881245428183. The reversal of 25881245428180 is 8182454218852.

It is an interprime number because it is at equal distance from previous prime (25881245428177) and next prime (25881245428183).

It is a super-2 number, since 2×25881245428180² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25881245428183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20871971500 + ... + 20871972739.

It is an arithmetic number, because the mean of its divisors is an integer number (2337660877440).

Almost surely, 2^{25881245428180} is an apocalyptic number.

25881245428180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25881245428180 is an abundant number, since it is smaller than the sum of its proper divisors (30222615630380).

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

25881245428180 is a wasteful number, since it uses less digits than its factorization.

25881245428180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41743944279 (or 41743944277 counting only the distinct ones).

The product of its (nonzero) digits is 13107200, while the sum is 58.

The spelling of 25881245428180 in words is "twenty-five trillion, eight hundred eighty-one billion, two hundred forty-five million, four hundred twenty-eight thousand, one hundred eighty".