25853761189 has 2 divisors, whose sum is σ = 25853761190. Its totient is φ = 25853761188.

The previous prime is 25853761159. The next prime is 25853761229. The reversal of 25853761189 is 98116735852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25840562500 + 13198689 = 160750^2 + 3633^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25853761189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25853761159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12926880594 + 12926880595.

It is an arithmetic number, because the mean of its divisors is an integer number (12926880595).

Almost surely, 2^25853761189 is an apocalyptic number.

It is an amenable number.

25853761189 is a deficient number, since it is larger than the sum of its proper divisors (1).

25853761189 is an equidigital number, since it uses as much as digits as its factorization.

25853761189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 55.

The spelling of 25853761189 in words is "twenty-five billion, eight hundred fifty-three million, seven hundred sixty-one thousand, one hundred eighty-nine".