25868862244 has 27 divisors (see below), whose sum is σ = 45681183793. Its totient is φ = 12818145248.

The previous prime is 25868862241. The next prime is 25868862247. The reversal of 25868862244 is 44226886852.

The square root of 25868862244 is 160838.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (25868862241) and next prime (25868862247).

It can be written as a sum of positive squares in only one way, i.e., 15195492900 + 10673369344 = 123270^2 + 103312^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25868862241) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 44069319 + ... + 44069905.

Almost surely, 2^25868862244 is an apocalyptic number.

25868862244 is the 160838-th square number.

It is an amenable number.

25868862244 is a deficient number, since it is larger than the sum of its proper divisors (19812321549).

25868862244 is an frugal number, since it uses more digits than its factorization.

25868862244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452 (or 726 counting only the distinct ones).

The product of its digits is 11796480, while the sum is 55.

The spelling of 25868862244 in words is "twenty-five billion, eight hundred sixty-eight million, eight hundred sixty-two thousand, two hundred forty-four".