25860853361 has 16 divisors (see below), whose sum is σ = 30497160960. Its totient is φ = 21467915520.

The previous prime is 25860853357. The next prime is 25860853379. The reversal of 25860853361 is 16335806852.

It is a cyclic number.

It is not a de Polignac number, because 25860853361 - 2² = 25860853357 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25860853301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289541 + ... + 368178.

It is an arithmetic number, because the mean of its divisors is an integer number (1906072560).

Almost surely, 2^25860853361 is an apocalyptic number.

It is an amenable number.

25860853361 is a deficient number, since it is larger than the sum of its proper divisors (4636307599).

25860853361 is a wasteful number, since it uses less digits than its factorization.

25860853361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657904.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 25860853361 in words is "twenty-five billion, eight hundred sixty million, eight hundred fifty-three thousand, three hundred sixty-one".