25704318416 has 80 divisors (see below), whose sum is σ = 60384706560. Its totient is φ = 10354055040.

The previous prime is 25704318373. The next prime is 25704318481. The reversal of 25704318416 is 61481340752.

It is a super-2 number, since 2×25704318416² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222701 + ... + 317811.

It is an arithmetic number, because the mean of its divisors is an integer number (754808832).

Almost surely, 2^25704318416 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 25704318416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30192353280).

25704318416 is an abundant number, since it is smaller than the sum of its proper divisors (34680388144).

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

25704318416 is a wasteful number, since it uses less digits than its factorization.

25704318416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95272 (or 95266 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 25704318416 in words is "twenty-five billion, seven hundred four million, three hundred eighteen thousand, four hundred sixteen".