25783323465 has 32 divisors (see below), whose sum is σ = 41732407296. Its totient is φ = 13592214720.

The previous prime is 25783323443. The next prime is 25783323473. The reversal of 25783323465 is 56432338752.

It is not a de Polignac number, because 25783323465 - 2⁷ = 25783323337 is a prime.

It is a super-3 number, since 3×25783323465³ (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, 491284 + ... + 541226.

It is an arithmetic number, because the mean of its divisors is an integer number (1304137728).

Almost surely, 2^25783323465 is an apocalyptic number.

It is an amenable number.

25783323465 is a deficient number, since it is larger than the sum of its proper divisors (15949083831).

25783323465 is a wasteful number, since it uses less digits than its factorization.

25783323465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50349.

The product of its digits is 3628800, while the sum is 48.

The spelling of 25783323465 in words is "twenty-five billion, seven hundred eighty-three million, three hundred twenty-three thousand, four hundred sixty-five".