25780717019904 has 432 divisors, whose sum is σ = 86343814093824. Its totient is φ = 6684587458560.

The previous prime is 25780717019873. The next prime is 25780717019917. The reversal of 25780717019904 is 40991071708752.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 375301849 + ... + 375370535.

It is an arithmetic number, because the mean of its divisors is an integer number (199869940032).

Almost surely, 2^{25780717019904} is an apocalyptic number.

25780717019904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25780717019904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43171907046912).

25780717019904 is an abundant number, since it is smaller than the sum of its proper divisors (60563097073920).

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

25780717019904 is a wasteful number, since it uses less digits than its factorization.

25780717019904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69312 (or 69287 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 60.

The spelling of 25780717019904 in words is "twenty-five trillion, seven hundred eighty billion, seven hundred seventeen million, nineteen thousand, nine hundred four".