25822102112987 has 4 divisors (see below), whose sum is σ = 26944802204880. Its totient is φ = 24699402021096.

The previous prime is 25822102112981. The next prime is 25822102112999. The reversal of 25822102112987 is 78921120122852.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25822102112987 - 2⁶ = 25822102112923 is a prime.

It is a super-2 number, since 2×25822102112987² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25822102112981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561350045912 + ... + 561350045957.

It is an arithmetic number, because the mean of its divisors is an integer number (6736200551220).

Almost surely, 2^{25822102112987} is an apocalyptic number.

25822102112987 is a deficient number, since it is larger than the sum of its proper divisors (1122700091893).

25822102112987 is a wasteful number, since it uses less digits than its factorization.

25822102112987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122700091892.

The product of its (nonzero) digits is 645120, while the sum is 50.

The spelling of 25822102112987 in words is "twenty-five trillion, eight hundred twenty-two billion, one hundred two million, one hundred twelve thousand, nine hundred eighty-seven".