25819267159140 has 384 divisors, whose sum is σ = 90459806868480. Its totient is φ = 5356855296000.

The previous prime is 25819267159139. The next prime is 25819267159163. The reversal of 25819267159140 is 4195176291852.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1654967340 + ... + 1654982940.

It is an arithmetic number, because the mean of its divisors is an integer number (235572413720).

Almost surely, 2^{25819267159140} is an apocalyptic number.

25819267159140 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 25819267159140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45229903434240).

25819267159140 is an abundant number, since it is smaller than the sum of its proper divisors (64640539709340).

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

25819267159140 is a wasteful number, since it uses less digits than its factorization.

25819267159140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20663 (or 20661 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 60.

The spelling of 25819267159140 in words is "twenty-five trillion, eight hundred nineteen billion, two hundred sixty-seven million, one hundred fifty-nine thousand, one hundred forty".