25840119668 has 18 divisors (see below), whose sum is σ = 49704859218. Its totient is φ = 11745508720.

The previous prime is 25840119667. The next prime is 25840119673. The reversal of 25840119668 is 86691104852.

It can be written as a sum of positive squares in only one way, i.e., 21687863824 + 4152255844 = 147268^2 + 64438^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25840119667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26693855 + ... + 26694822.

Almost surely, 2^25840119668 is an apocalyptic number.

It is an amenable number.

25840119668 is a deficient number, since it is larger than the sum of its proper divisors (23864739550).

25840119668 is a wasteful number, since it uses less digits than its factorization.

25840119668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53388703 (or 53388690 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 50.

The spelling of 25840119668 in words is "twenty-five billion, eight hundred forty million, one hundred nineteen thousand, six hundred sixty-eight".