25928963105 has 8 divisors (see below), whose sum is σ = 31227085032. Its totient is φ = 20668284288.

The previous prime is 25928962981. The next prime is 25928963141. The reversal of 25928963105 is 50136982952.

It can be written as a sum of positive squares in 4 ways, for example, as 4754929936 + 21174033169 = 68956^2 + 145513^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25928963105 - 2⁸ = 25928962849 is a prime.

It is a super-2 number, since 2×25928963105² (a number of 22 digits) contains 22 as substring.

It is a Duffinian 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, 9359252 + ... + 9362021.

It is an arithmetic number, because the mean of its divisors is an integer number (3903385629).

Almost surely, 2^25928963105 is an apocalyptic number.

It is an amenable number.

25928963105 is a deficient number, since it is larger than the sum of its proper divisors (5298121927).

25928963105 is a wasteful number, since it uses less digits than its factorization.

25928963105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18721555.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The spelling of 25928963105 in words is "twenty-five billion, nine hundred twenty-eight million, nine hundred sixty-three thousand, one hundred five".