12271787360 has 144 divisors (see below), whose sum is σ = 33971147280. Its totient is φ = 4176829440.

The previous prime is 12271787251. The next prime is 12271787453. The reversal of 12271787360 is 6378717221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1084130 + ... + 1095390.

It is an arithmetic number, because the mean of its divisors is an integer number (235910745).

Almost surely, 2^12271787360 is an apocalyptic number.

12271787360 is a gapful number since it is divisible by the number (10) 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 12271787360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16985573640).

12271787360 is an abundant number, since it is smaller than the sum of its proper divisors (21699359920).

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

12271787360 is a wasteful number, since it uses less digits than its factorization.

12271787360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11429 (or 11414 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 44.

The spelling of 12271787360 in words is "twelve billion, two hundred seventy-one million, seven hundred eighty-seven thousand, three hundred sixty".