25683026840 has 64 divisors (see below), whose sum is σ = 58280808960. Its totient is φ = 10185535360.

The previous prime is 25683026833. The next prime is 25683026851. The reversal of 25683026840 is 4862038652.

It is a junction number, because it is equal to n+sod(n) for n = 25683026791 and 25683026800.

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, 10494497 + ... + 10496943.

It is an arithmetic number, because the mean of its divisors is an integer number (910637640).

Almost surely, 2^25683026840 is an apocalyptic number.

25683026840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25683026840 is an abundant number, since it is smaller than the sum of its proper divisors (32597782120).

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

25683026840 is a wasteful number, since it uses less digits than its factorization.

25683026840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4592 (or 4588 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 44.

The spelling of 25683026840 in words is "twenty-five billion, six hundred eighty-three million, twenty-six thousand, eight hundred forty".