25808268439996 has 192 divisors, whose sum is σ = 54880415170560. Its totient is φ = 10391248707840.

The previous prime is 25808268439979. The next prime is 25808268440023. The reversal of 25808268439996 is 69993486280852.

It is a happy number.

It is a congruent number.

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, 868277991 + ... + 868307713.

It is an arithmetic number, because the mean of its divisors is an integer number (285835495680).

Almost surely, 2^{25808268439996} 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 25808268439996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27440207585280).

25808268439996 is an abundant number, since it is smaller than the sum of its proper divisors (29072146730564).

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

25808268439996 is a wasteful number, since it uses less digits than its factorization.

25808268439996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30104 (or 30102 counting only the distinct ones).

The product of its (nonzero) digits is 3224862720, while the sum is 79.

The spelling of 25808268439996 in words is "twenty-five trillion, eight hundred eight billion, two hundred sixty-eight million, four hundred thirty-nine thousand, nine hundred ninety-six".