25788346528 has 192 divisors, whose sum is σ = 61059640320. Its totient is φ = 10493263872.

The previous prime is 25788346523. The next prime is 25788346531. The reversal of 25788346528 is 82564388752.

It is not an unprimeable number, because it can be changed into a prime (25788346523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63051988 + ... + 63052396.

It is an arithmetic number, because the mean of its divisors is an integer number (318018960).

Almost surely, 2^25788346528 is an apocalyptic number.

25788346528 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25788346528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30529820160).

25788346528 is an abundant number, since it is smaller than the sum of its proper divisors (35271293792).

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

25788346528 is a wasteful number, since it uses less digits than its factorization.

25788346528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639 (or 631 counting only the distinct ones).

The product of its digits is 25804800, while the sum is 58.

The spelling of 25788346528 in words is "twenty-five billion, seven hundred eighty-eight million, three hundred forty-six thousand, five hundred twenty-eight".