25803188771880 has 256 divisors, whose sum is σ = 88830152167680. Its totient is φ = 5939856359424.

The previous prime is 25803188771851. The next prime is 25803188771903. The reversal of 25803188771880 is 8817788130852.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1065007 + ... + 7262273.

It is an arithmetic number, because the mean of its divisors is an integer number (346992781905).

Almost surely, 2^{25803188771880} is an apocalyptic number.

25803188771880 is a gapful number since it is divisible by the number (20) 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 25803188771880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44415076083840).

25803188771880 is an abundant number, since it is smaller than the sum of its proper divisors (63026963395800).

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

25803188771880 is a wasteful number, since it uses less digits than its factorization.

25803188771880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6197468 (or 6197464 counting only the distinct ones).

The product of its (nonzero) digits is 48168960, while the sum is 66.

The spelling of 25803188771880 in words is "twenty-five trillion, eight hundred three billion, one hundred eighty-eight million, seven hundred seventy-one thousand, eight hundred eighty".