25939425792 has 320 divisors, whose sum is σ = 84172898304. Its totient is φ = 6929448960.

The previous prime is 25939425763. The next prime is 25939425793. The reversal of 25939425792 is 29752493952.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25939425793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34911373 + ... + 34912115.

Almost surely, 2^25939425792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25939425792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42086449152).

25939425792 is an abundant number, since it is smaller than the sum of its proper divisors (58233472512).

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

25939425792 is a wasteful number, since it uses less digits than its factorization.

25939425792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979 (or 963 counting only the distinct ones).

The product of its digits is 12247200, while the sum is 57.

The spelling of 25939425792 in words is "twenty-five billion, nine hundred thirty-nine million, four hundred twenty-five thousand, seven hundred ninety-two".