25683436480 has 112 divisors (see below), whose sum is σ = 67470064704. Its totient is φ = 9251758080.

The previous prime is 25683436469. The next prime is 25683436501. The reversal of 25683436480 is 8463438652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95269 + ... + 245851.

It is an arithmetic number, because the mean of its divisors is an integer number (602411292).

Almost surely, 2^25683436480 is an apocalyptic number.

25683436480 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 25683436480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33735032352).

25683436480 is an abundant number, since it is smaller than the sum of its proper divisors (41786628224).

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

25683436480 is a wasteful number, since it uses less digits than its factorization.

25683436480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150654 (or 150644 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 49.

The spelling of 25683436480 in words is "twenty-five billion, six hundred eighty-three million, four hundred thirty-six thousand, four hundred eighty".