25649384604 has 24 divisors (see below), whose sum is σ = 59858925840. Its totient is φ = 8548314624.

The previous prime is 25649384581. The next prime is 25649384617. The reversal of 25649384604 is 40648394652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111669 + ... + 252524.

It is an arithmetic number, because the mean of its divisors is an integer number (2494121910).

Almost surely, 2^25649384604 is an apocalyptic number.

It is an amenable number.

25649384604 is an abundant number, since it is smaller than the sum of its proper divisors (34209541236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25649384604 is a wasteful number, since it uses less digits than its factorization.

25649384604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370069 (or 370067 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 51.

The spelling of 25649384604 in words is "twenty-five billion, six hundred forty-nine million, three hundred eighty-four thousand, six hundred four".