25864228677 has 8 divisors (see below), whose sum is σ = 39412158016. Its totient is φ = 14779559232.

The previous prime is 25864228669. The next prime is 25864228699. The reversal of 25864228677 is 77682246852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25864228677 - 2³ = 25864228669 is a prime.

It is a super-2 number, since 2×25864228677² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25864228657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615814948 + ... + 615814989.

It is an arithmetic number, because the mean of its divisors is an integer number (4926519752).

Almost surely, 2^25864228677 is an apocalyptic number.

It is an amenable number.

25864228677 is a deficient number, since it is larger than the sum of its proper divisors (13547929339).

25864228677 is a wasteful number, since it uses less digits than its factorization.

25864228677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231629947.

The product of its digits is 18063360, while the sum is 57.

It can be divided in two parts, 25864 and 228677, that added together give a triangular number (254541 = T₇₁₃).

The spelling of 25864228677 in words is "twenty-five billion, eight hundred sixty-four million, two hundred twenty-eight thousand, six hundred seventy-seven".