25760000000 has 384 divisors, whose sum is σ = 76781053440. Its totient is φ = 8448000000.

The previous prime is 25759999957. The next prime is 25760000009. The reversal of 25760000000 is 6752.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25760000009) 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 31 ways as a sum of consecutive naturals, for example, 1119999989 + ... + 1120000011.

It is an arithmetic number, because the mean of its divisors is an integer number (199950660).

Almost surely, 2^25760000000 is an apocalyptic number.

25760000000 is a gapful number since it is divisible by the number (20) 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 25760000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38390526720).

25760000000 is an abundant number, since it is smaller than the sum of its proper divisors (51021053440).

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

25760000000 is an frugal number, since it uses more digits than its factorization.

25760000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

Adding to 25760000000 its reverse (6752), we get a palindrome (25760006752).

The spelling of 25760000000 in words is "twenty-five billion, seven hundred sixty million", and thus it is an aban number.