25899457008432 has 320 divisors, whose sum is σ = 77906213683200. Its totient is φ = 7261703488512.

The previous prime is 25899457008407. The next prime is 25899457008463. The reversal of 25899457008432 is 23480075499852.

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, 3590660058 + ... + 3590667270.

It is an arithmetic number, because the mean of its divisors is an integer number (243456917760).

Almost surely, 2^{25899457008432} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25899457008432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38953106841600).

25899457008432 is an abundant number, since it is smaller than the sum of its proper divisors (52006756674768).

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

25899457008432 is a wasteful number, since it uses less digits than its factorization.

25899457008432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8160 (or 8154 counting only the distinct ones).

The product of its (nonzero) digits is 174182400, while the sum is 66.

The spelling of 25899457008432 in words is "twenty-five trillion, eight hundred ninety-nine billion, four hundred fifty-seven million, eight thousand, four hundred thirty-two".