25286841216 has 576 divisors, whose sum is σ = 96566586480. Its totient is φ = 6273662976.

The previous prime is 25286841197. The next prime is 25286841257. The reversal of 25286841216 is 61214868252.

25286841216 is a `hidden beast` number, since 2 + 528 + 68 + 41 + 21 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 12473995 + ... + 12476021.

Almost surely, 2^25286841216 is an apocalyptic number.

25286841216 is a gapful number since it is divisible by the number (26) 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 25286841216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48283293240).

25286841216 is an abundant number, since it is smaller than the sum of its proper divisors (71279745264).

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

25286841216 is a wasteful number, since it uses less digits than its factorization.

25286841216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091 (or 2069 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The spelling of 25286841216 in words is "twenty-five billion, two hundred eighty-six million, eight hundred forty-one thousand, two hundred sixteen".