25968537954 has 40 divisors (see below), whose sum is σ = 60195280860. Its totient is φ = 8357688864.

The previous prime is 25968537929. The next prime is 25968537971. The reversal of 25968537954 is 45973586952.

25968537954 is a `hidden beast` number, since 2 + 5 + 9 + 6 + 8 + 537 + 95 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 24537656025 + 1430881929 = 156645^2 + 37827^2 .

It is a super-2 number, since 2×25968537954² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25968537891 and 25968537900.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2759089 + ... + 2768484.

Almost surely, 2^25968537954 is an apocalyptic number.

25968537954 is an abundant number, since it is smaller than the sum of its proper divisors (34226742906).

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

25968537954 is a wasteful number, since it uses less digits than its factorization.

25968537954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5527616 (or 5527607 counting only the distinct ones).

The product of its digits is 81648000, while the sum is 63.

The spelling of 25968537954 in words is "twenty-five billion, nine hundred sixty-eight million, five hundred thirty-seven thousand, nine hundred fifty-four".