25986068990 has 32 divisors (see below), whose sum is σ = 55181481984. Its totient is φ = 8622105120.

The previous prime is 25986068971. The next prime is 25986069007. The reversal of 25986068990 is 9986068952.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5985404 + ... + 5989743.

It is an arithmetic number, because the mean of its divisors is an integer number (1724421312).

Almost surely, 2^25986068990 is an apocalyptic number.

25986068990 is an abundant number, since it is smaller than the sum of its proper divisors (29195412994).

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

25986068990 is a wasteful number, since it uses less digits than its factorization.

25986068990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11975192.

The product of its (nonzero) digits is 16796160, while the sum is 62.

The spelling of 25986068990 in words is "twenty-five billion, nine hundred eighty-six million, sixty-eight thousand, nine hundred ninety".