25395793917 has 16 divisors (see below), whose sum is σ = 36472141440. Its totient is φ = 15625444032.

The previous prime is 25395793909. The next prime is 25395793931. The reversal of 25395793917 is 71939759352.

It is not a de Polignac number, because 25395793917 - 2³ = 25395793909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25395793987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181128 + ... + 289134.

It is an arithmetic number, because the mean of its divisors is an integer number (2279508840).

Almost surely, 2^25395793917 is an apocalyptic number.

It is an amenable number.

25395793917 is a deficient number, since it is larger than the sum of its proper divisors (11076347523).

25395793917 is a wasteful number, since it uses less digits than its factorization.

25395793917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114052.

The product of its digits is 16074450, while the sum is 60.

The spelling of 25395793917 in words is "twenty-five billion, three hundred ninety-five million, seven hundred ninety-three thousand, nine hundred seventeen".