25986068988 has 24 divisors (see below), whose sum is σ = 66146357760. Its totient is φ = 7874566320.

The previous prime is 25986068971. The next prime is 25986069007. The reversal of 25986068988 is 88986068952.

It is a zygodrome in base 2.

It is a congruent number.

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, 98431948 + ... + 98432211.

It is an arithmetic number, because the mean of its divisors is an integer number (2756098240).

Almost surely, 2^25986068988 is an apocalyptic number.

It is an amenable number.

25986068988 is an abundant number, since it is smaller than the sum of its proper divisors (40160288772).

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

25986068988 is a wasteful number, since it uses less digits than its factorization.

25986068988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196864177 (or 196864175 counting only the distinct ones).

The product of its (nonzero) digits is 119439360, while the sum is 69.

The spelling of 25986068988 in words is "twenty-five billion, nine hundred eighty-six million, sixty-eight thousand, nine hundred eighty-eight".