25868734145 has 16 divisors (see below), whose sum is σ = 32112557568. Its totient is φ = 19984465920.

The previous prime is 25868734141. The next prime is 25868734147. The reversal of 25868734145 is 54143786852.

It is not a de Polignac number, because 25868734145 - 2² = 25868734141 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25868734141) 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, 106304 + ... + 251073.

It is an arithmetic number, because the mean of its divisors is an integer number (2007034848).

Almost surely, 2^25868734145 is an apocalyptic number.

It is an amenable number.

25868734145 is a deficient number, since it is larger than the sum of its proper divisors (6243823423).

25868734145 is a wasteful number, since it uses less digits than its factorization.

25868734145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357880.

The product of its digits is 6451200, while the sum is 53.

The spelling of 25868734145 in words is "twenty-five billion, eight hundred sixty-eight million, seven hundred thirty-four thousand, one hundred forty-five".