25738532469 has 24 divisors (see below), whose sum is σ = 40107939872. Its totient is φ = 15811316640.

The previous prime is 25738532459. The next prime is 25738532473. The reversal of 25738532469 is 96423583752.

25738532469 is a `hidden beast` number, since 2 + 5 + 73 + 85 + 32 + 469 = 666.

It is not a de Polignac number, because 25738532469 - 2⁹ = 25738531957 is a prime.

It is a super-2 number, since 2×25738532469² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25738532459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125827 + ... + 259440.

Almost surely, 2^25738532469 is an apocalyptic number.

It is an amenable number.

25738532469 is a deficient number, since it is larger than the sum of its proper divisors (14369407403).

25738532469 is a wasteful number, since it uses less digits than its factorization.

25738532469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385857 (or 385854 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 54.

The spelling of 25738532469 in words is "twenty-five billion, seven hundred thirty-eight million, five hundred thirty-two thousand, four hundred sixty-nine".