25869859842996 has 288 divisors, whose sum is σ = 76893992448000. Its totient is φ = 7539204159360.

The previous prime is 25869859842991. The next prime is 25869859843007. The reversal of 25869859842996 is 69924895896852.

25869859842996 is a `hidden beast` number, since 2 + 5 + 8 + 6 + 9 + 8 + 5 + 98 + 429 + 96 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25869859842991) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1255869105 + ... + 1255889703.

Almost surely, 2^{25869859842996} is an apocalyptic number.

25869859842996 is a gapful number since it is divisible by the number (26) 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 25869859842996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38446996224000).

25869859842996 is an abundant number, since it is smaller than the sum of its proper divisors (51024132605004).

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

25869859842996 is a wasteful number, since it uses less digits than its factorization.

25869859842996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25881 (or 25867 counting only the distinct ones).

The product of its digits is 48372940800, while the sum is 90.

The spelling of 25869859842996 in words is "twenty-five trillion, eight hundred sixty-nine billion, eight hundred fifty-nine million, eight hundred forty-two thousand, nine hundred ninety-six".