25467879888 has 120 divisors (see below), whose sum is σ = 77797583136. Its totient is φ = 7713235200.

The previous prime is 25467879887. The next prime is 25467879893. The reversal of 25467879888 is 88897876452.

25467879888 is a `hidden beast` number, since 2 + 5 + 467 + 87 + 9 + 8 + 88 = 666.

It is a super-2 number, since 2×25467879888² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25467879887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3920323 + ... + 3926813.

Almost surely, 2^25467879888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25467879888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38898791568).

25467879888 is an abundant number, since it is smaller than the sum of its proper divisors (52329703248).

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

25467879888 is a wasteful number, since it uses less digits than its factorization.

25467879888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8993 (or 8984 counting only the distinct ones).

The product of its digits is 433520640, while the sum is 72.

The spelling of 25467879888 in words is "twenty-five billion, four hundred sixty-seven million, eight hundred seventy-nine thousand, eight hundred eighty-eight".