25761880512 has 168 divisors, whose sum is σ = 82301029200. Its totient is φ = 7656726528.

The previous prime is 25761880511. The next prime is 25761880541. The reversal of 25761880512 is 21508816752.

25761880512 is a `hidden beast` number, since 2 + 57 + 6 + 1 + 8 + 80 + 512 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25761880511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116814 + ... + 255282.

Almost surely, 2^25761880512 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 25761880512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41150514600).

25761880512 is an abundant number, since it is smaller than the sum of its proper divisors (56539148688).

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

25761880512 is a wasteful number, since it uses less digits than its factorization.

25761880512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138523 (or 138510 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 45.

The spelling of 25761880512 in words is "twenty-five billion, seven hundred sixty-one million, eight hundred eighty thousand, five hundred twelve".