25740745199 has 8 divisors (see below), whose sum is σ = 27729359280. Its totient is φ = 23753353536.

The previous prime is 25740745139. The next prime is 25740745201. The reversal of 25740745199 is 99154704752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25740745199 - 2²⁰ = 25739696623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25740745199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25740745139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261629 + ... + 346310.

It is an arithmetic number, because the mean of its divisors is an integer number (3466169910).

Almost surely, 2^25740745199 is an apocalyptic number.

25740745199 is a deficient number, since it is larger than the sum of its proper divisors (1988614081).

25740745199 is a wasteful number, since it uses less digits than its factorization.

25740745199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611209.

The product of its (nonzero) digits is 3175200, while the sum is 53.

The spelling of 25740745199 in words is "twenty-five billion, seven hundred forty million, seven hundred forty-five thousand, one hundred ninety-nine".