25900002849 has 48 divisors (see below), whose sum is σ = 40818398208. Its totient is φ = 14309068608.

The previous prime is 25900002839. The next prime is 25900002851. The reversal of 25900002849 is 94820000952.

It is not a de Polignac number, because 25900002849 - 2⁷ = 25900002721 is a prime.

25900002849 is a modest number, since divided by 2849 gives 259 as remainder.

It is not an unprimeable number, because it can be changed into a prime (25900002829) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4683324 + ... + 4688850.

It is an arithmetic number, because the mean of its divisors is an integer number (850383296).

Almost surely, 2^25900002849 is an apocalyptic number.

It is an amenable number.

25900002849 is a deficient number, since it is larger than the sum of its proper divisors (14918395359).

25900002849 is a wasteful number, since it uses less digits than its factorization.

25900002849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5774 (or 5737 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 25900002849 in words is "twenty-five billion, nine hundred million, two thousand, eight hundred forty-nine".