25823086644 has 24 divisors (see below), whose sum is σ = 60265337440. Its totient is φ = 8606057184.

The previous prime is 25823086643. The next prime is 25823086661. The reversal of 25823086644 is 44668032852.

It is a junction number, because it is equal to n+sod(n) for n = 25823086593 and 25823086602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25823086643) 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, 138259 + ... + 266010.

Almost surely, 2^25823086644 is an apocalyptic number.

It is an amenable number.

25823086644 is an abundant number, since it is smaller than the sum of its proper divisors (34442250796).

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

25823086644 is a wasteful number, since it uses less digits than its factorization.

25823086644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409599 (or 409597 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 48.

The spelling of 25823086644 in words is "twenty-five billion, eight hundred twenty-three million, eighty-six thousand, six hundred forty-four".