25630330781468 has 72 divisors (see below), whose sum is σ = 54926768206800. Its totient is φ = 10405422300672.

The previous prime is 25630330781383. The next prime is 25630330781507. The reversal of 25630330781468 is 86418703303652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44824718 + ... + 45392906.

It is an arithmetic number, because the mean of its divisors is an integer number (762871780650).

Almost surely, 2^{25630330781468} is an apocalyptic number.

25630330781468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25630330781468 is an abundant number, since it is smaller than the sum of its proper divisors (29296437425332).

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

25630330781468 is a wasteful number, since it uses less digits than its factorization.

25630330781468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580339 (or 580330 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 56.

The spelling of 25630330781468 in words is "twenty-five trillion, six hundred thirty billion, three hundred thirty million, seven hundred eighty-one thousand, four hundred sixty-eight".