12295871280 has 800 divisors, whose sum is σ = 56088552960. Its totient is φ = 2418647040.

The previous prime is 12295871267. The next prime is 12295871293. The reversal of 12295871280 is 8217859221.

12295871280 is a `hidden beast` number, since 1 + 2 + 295 + 87 + 1 + 280 = 666.

It is an interprime number because it is at equal distance from previous prime (12295871267) and next prime (12295871293).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 9479592 + ... + 9480888.

Almost surely, 2^12295871280 is an apocalyptic number.

12295871280 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 12295871280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28044276480).

12295871280 is an abundant number, since it is smaller than the sum of its proper divisors (43792681680).

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

12295871280 is a wasteful number, since it uses less digits than its factorization.

12295871280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359 (or 1344 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 12295871280 in words is "twelve billion, two hundred ninety-five million, eight hundred seventy-one thousand, two hundred eighty".