25383968187 has 16 divisors (see below), whose sum is σ = 34453217280. Its totient is φ = 16620926400.

The previous prime is 25383968167. The next prime is 25383968227. The reversal of 25383968187 is 78186938352.

It is not a de Polignac number, because 25383968187 - 2⁶ = 25383968123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25383968187.

It is not an unprimeable number, because it can be changed into a prime (25383968167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235114 + ... + 325647.

It is an arithmetic number, because the mean of its divisors is an integer number (2153326080).

Almost surely, 2^25383968187 is an apocalyptic number.

25383968187 is a deficient number, since it is larger than the sum of its proper divisors (9069249093).

25383968187 is a wasteful number, since it uses less digits than its factorization.

25383968187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561034.

The product of its digits is 17418240, while the sum is 60.

The spelling of 25383968187 in words is "twenty-five billion, three hundred eighty-three million, nine hundred sixty-eight thousand, one hundred eighty-seven".