25788750018 has 16 divisors (see below), whose sum is σ = 53356034880. Its totient is φ = 8299827536.

The previous prime is 25788749999. The next prime is 25788750089. The reversal of 25788750018 is 81005788752.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74105430 + ... + 74105777.

It is an arithmetic number, because the mean of its divisors is an integer number (3334752180).

Almost surely, 2^25788750018 is an apocalyptic number.

25788750018 is an abundant number, since it is smaller than the sum of its proper divisors (27567284862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25788750018 is a wasteful number, since it uses less digits than its factorization.

25788750018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148211241.

The product of its (nonzero) digits is 1254400, while the sum is 51.

The spelling of 25788750018 in words is "twenty-five billion, seven hundred eighty-eight million, seven hundred fifty thousand, eighteen".