25969652368 has 20 divisors (see below), whose sum is σ = 54890401968. Its totient is φ = 11804387360.

The previous prime is 25969652347. The next prime is 25969652393. The reversal of 25969652368 is 86325696952.

It is a super-2 number, since 2×25969652368² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73777246 + ... + 73777597.

Almost surely, 2^25969652368 is an apocalyptic number.

It is an amenable number.

25969652368 is an abundant number, since it is smaller than the sum of its proper divisors (28920749600).

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

25969652368 is a wasteful number, since it uses less digits than its factorization.

25969652368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147554862 (or 147554856 counting only the distinct ones).

The product of its digits is 41990400, while the sum is 61.

The spelling of 25969652368 in words is "twenty-five billion, nine hundred sixty-nine million, six hundred fifty-two thousand, three hundred sixty-eight".