25680900480 has 64 divisors (see below), whose sum is σ = 81857876400. Its totient is φ = 6848239616.

The previous prime is 25680900389. The next prime is 25680900503. The reversal of 25680900480 is 8400908652.

It is a tau number, because it is divible by the number of its divisors (64).

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, 6685815 + ... + 6689654.

Almost surely, 2^25680900480 is an apocalyptic number.

25680900480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25680900480 is an abundant number, since it is smaller than the sum of its proper divisors (56176975920).

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

25680900480 is a wasteful number, since it uses less digits than its factorization.

25680900480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13375491 (or 13375479 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 25680900480 in words is "twenty-five billion, six hundred eighty million, nine hundred thousand, four hundred eighty".