25842325840 has 40 divisors (see below), whose sum is σ = 61361786880. Its totient is φ = 10116994176.

The previous prime is 25842325819. The next prime is 25842325877. The reversal of 25842325840 is 4852324852.

It is a tau number, because it is divible by the number of its divisors (40).

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, 3432720 + ... + 3440239.

It is an arithmetic number, because the mean of its divisors is an integer number (1534044672).

Almost surely, 2^25842325840 is an apocalyptic number.

25842325840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25842325840 is an abundant number, since it is smaller than the sum of its proper divisors (35519461040).

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

25842325840 is a wasteful number, since it uses less digits than its factorization.

25842325840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6873019 (or 6873013 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 43.

The spelling of 25842325840 in words is "twenty-five billion, eight hundred forty-two million, three hundred twenty-five thousand, eight hundred forty".