25828149984 has 192 divisors, whose sum is σ = 83619131904. Its totient is φ = 6797592576.

The previous prime is 25828149973. The next prime is 25828150021. The reversal of 25828149984 is 48994182852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4566102 + ... + 4571754.

It is an arithmetic number, because the mean of its divisors is an integer number (435516312).

Almost surely, 2^25828149984 is an apocalyptic number.

25828149984 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 25828149984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41809565952).

25828149984 is an abundant number, since it is smaller than the sum of its proper divisors (57790981920).

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

25828149984 is a wasteful number, since it uses less digits than its factorization.

25828149984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6209 (or 6201 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 60.

The spelling of 25828149984 in words is "twenty-five billion, eight hundred twenty-eight million, one hundred forty-nine thousand, nine hundred eighty-four".