25986882620 has 24 divisors (see below), whose sum is σ = 55602124704. Its totient is φ = 10198625216.

The previous prime is 25986882619. The next prime is 25986882653. The reversal of 25986882620 is 2628868952.

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, 12256904 + ... + 12259023.

It is an arithmetic number, because the mean of its divisors is an integer number (2316755196).

Almost surely, 2^25986882620 is an apocalyptic number.

25986882620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25986882620 is an abundant number, since it is smaller than the sum of its proper divisors (29615242084).

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

25986882620 is a wasteful number, since it uses less digits than its factorization.

25986882620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24515989 (or 24515987 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 56.

The spelling of 25986882620 in words is "twenty-five billion, nine hundred eighty-six million, eight hundred eighty-two thousand, six hundred twenty".