25887699678852 has 144 divisors (see below), whose sum is σ = 72603779189760. Its totient is φ = 7711101624000.

The previous prime is 25887699678851. The next prime is 25887699678913.

25887699678852 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (25887699678851) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 297683977 + ... + 297770927.

It is an arithmetic number, because the mean of its divisors is an integer number (504192911040).

Almost surely, 2^{25887699678852} is an apocalyptic number.

25887699678852 is a gapful number since it is divisible by the number (22) 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 25887699678852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36301889594880).

25887699678852 is an abundant number, since it is smaller than the sum of its proper divisors (46716079510908).

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

25887699678852 is a wasteful number, since it uses less digits than its factorization.

25887699678852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99774 (or 99769 counting only the distinct ones).

The product of its digits is 58525286400, while the sum is 90.

The spelling of 25887699678852 in words is "twenty-five trillion, eight hundred eighty-seven billion, six hundred ninety-nine million, six hundred seventy-eight thousand, eight hundred fifty-two".