25632980849 has 8 divisors (see below), whose sum is σ = 29400595008. Its totient is φ = 21891806640.

The previous prime is 25632980831. The next prime is 25632980873. The reversal of 25632980849 is 94808923652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25632980849 - 2¹² = 25632976753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25632980794 and 25632980803.

It is not an unprimeable number, because it can be changed into a prime (25632980809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6607907 + ... + 6611784.

It is an arithmetic number, because the mean of its divisors is an integer number (3675074376).

Almost surely, 2^25632980849 is an apocalyptic number.

It is an amenable number.

25632980849 is a deficient number, since it is larger than the sum of its proper divisors (3767614159).

25632980849 is a wasteful number, since it uses less digits than its factorization.

25632980849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13219975.

The product of its (nonzero) digits is 7464960, while the sum is 56.

The spelling of 25632980849 in words is "twenty-five billion, six hundred thirty-two million, nine hundred eighty thousand, eight hundred forty-nine".