25882730649 has 24 divisors (see below), whose sum is σ = 37653270720. Its totient is φ = 17132046048.

The previous prime is 25882730593. The next prime is 25882730693. The reversal of 25882730649 is 94603728852.

25882730649 is a `hidden beast` number, since 2 + 588 + 27 + 30 + 6 + 4 + 9 = 666.

It is not a de Polignac number, because 25882730649 - 2¹¹ = 25882728601 is a prime.

It is a super-2 number, since 2×25882730649² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25882730595 and 25882730604.

It is not an unprimeable number, because it can be changed into a prime (25882730749) 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, 2038282 + ... + 2050940.

It is an arithmetic number, because the mean of its divisors is an integer number (1568886280).

Almost surely, 2^25882730649 is an apocalyptic number.

It is an amenable number.

25882730649 is a deficient number, since it is larger than the sum of its proper divisors (11770540071).

25882730649 is a wasteful number, since it uses less digits than its factorization.

25882730649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14269 (or 14266 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 25882730649 in words is "twenty-five billion, eight hundred eighty-two million, seven hundred thirty thousand, six hundred forty-nine".