25796205465 has 32 divisors (see below), whose sum is σ = 42265998720. Its totient is φ = 13427774976.

The previous prime is 25796205451. The next prime is 25796205497. The reversal of 25796205465 is 56450269752.

It is a happy number.

It is not a de Polignac number, because 25796205465 - 2⁹ = 25796204953 is a prime.

It is a super-3 number, since 3×25796205465³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 871021 + ... + 900149.

It is an arithmetic number, because the mean of its divisors is an integer number (1320812460).

Almost surely, 2^25796205465 is an apocalyptic number.

It is an amenable number.

25796205465 is a deficient number, since it is larger than the sum of its proper divisors (16469793255).

25796205465 is a wasteful number, since it uses less digits than its factorization.

25796205465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30553.

The product of its (nonzero) digits is 4536000, while the sum is 51.

The spelling of 25796205465 in words is "twenty-five billion, seven hundred ninety-six million, two hundred five thousand, four hundred sixty-five".