25868066964 has 24 divisors (see below), whose sum is σ = 60363148608. Its totient is φ = 8622071040.

The previous prime is 25868066929. The next prime is 25868066981. The reversal of 25868066964 is 46966086852.

It is a junction number, because it is equal to n+sod(n) for n = 25868066898 and 25868066907.

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, 116644 + ... + 255620.

It is an arithmetic number, because the mean of its divisors is an integer number (2515131192).

Almost surely, 2^25868066964 is an apocalyptic number.

It is an amenable number.

25868066964 is an abundant number, since it is smaller than the sum of its proper divisors (34495081644).

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

25868066964 is a wasteful number, since it uses less digits than its factorization.

25868066964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154495 (or 154493 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 60.

The spelling of 25868066964 in words is "twenty-five billion, eight hundred sixty-eight million, sixty-six thousand, nine hundred sixty-four".