25853761187 has 12 divisors (see below), whose sum is σ = 27400361760. Its totient is φ = 24390474192.

The previous prime is 25853761159. The next prime is 25853761189. The reversal of 25853761187 is 78116735852.

It is not a de Polignac number, because 25853761187 - 2⁶ = 25853761123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25853761189) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63548 + ... + 236105.

It is an arithmetic number, because the mean of its divisors is an integer number (2283363480).

Almost surely, 2^25853761187 is an apocalyptic number.

25853761187 is a deficient number, since it is larger than the sum of its proper divisors (1546600573).

25853761187 is a wasteful number, since it uses less digits than its factorization.

25853761187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299930 (or 299911 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 53.

The spelling of 25853761187 in words is "twenty-five billion, eight hundred fifty-three million, seven hundred sixty-one thousand, one hundred eighty-seven".