25970814881 has 16 divisors (see below), whose sum is σ = 30295410048. Its totient is φ = 22000992000.

The previous prime is 25970814853. The next prime is 25970814899. The reversal of 25970814881 is 18841807952.

It is not a de Polignac number, because 25970814881 - 2⁶ = 25970814817 is a prime.

It is a super-2 number, since 2×25970814881² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25970814811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 668645 + ... + 706418.

It is an arithmetic number, because the mean of its divisors is an integer number (1893463128).

Almost surely, 2^25970814881 is an apocalyptic number.

It is an amenable number.

25970814881 is a deficient number, since it is larger than the sum of its proper divisors (4324595167).

25970814881 is a wasteful number, since it uses less digits than its factorization.

25970814881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375192.

The product of its (nonzero) digits is 1290240, while the sum is 53.

The spelling of 25970814881 in words is "twenty-five billion, nine hundred seventy million, eight hundred fourteen thousand, eight hundred eighty-one".