25816428372 has 288 divisors, whose sum is σ = 77669867520. Its totient is φ = 6522405120.

The previous prime is 25816428367. The next prime is 25816428373. The reversal of 25816428372 is 27382461852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25816428373) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 27260803 + ... + 27261749.

It is an arithmetic number, because the mean of its divisors is an integer number (269687040).

Almost surely, 2^25816428372 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 25816428372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38834933760).

25816428372 is an abundant number, since it is smaller than the sum of its proper divisors (51853439148).

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

25816428372 is a wasteful number, since it uses less digits than its factorization.

25816428372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059 (or 1038 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 48.

The spelling of 25816428372 in words is "twenty-five billion, eight hundred sixteen million, four hundred twenty-eight thousand, three hundred seventy-two".