25729904760 has 128 divisors (see below), whose sum is σ = 88399365120. Its totient is φ = 5868951552.

The previous prime is 25729904741. The next prime is 25729904791. The reversal of 25729904760 is 6740992752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 377632 + ... + 440528.

It is an arithmetic number, because the mean of its divisors is an integer number (690620040).

Almost surely, 2^25729904760 is an apocalyptic number.

25729904760 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 25729904760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44199682560).

25729904760 is an abundant number, since it is smaller than the sum of its proper divisors (62669460360).

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

25729904760 is a wasteful number, since it uses less digits than its factorization.

25729904760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63405 (or 63401 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 51.

The spelling of 25729904760 in words is "twenty-five billion, seven hundred twenty-nine million, nine hundred four thousand, seven hundred sixty".