12274197888 has 64 divisors (see below), whose sum is σ = 32783652720. Its totient is φ = 4068771840.

The previous prime is 12274197869. The next prime is 12274197889. The reversal of 12274197888 is 88879147221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12274197889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18795 + ... + 157802.

Almost surely, 2^12274197888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12274197888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16391826360).

12274197888 is an abundant number, since it is smaller than the sum of its proper divisors (20509454832).

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

12274197888 is a wasteful number, since it uses less digits than its factorization.

12274197888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176795 (or 176783 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 57.

The spelling of 12274197888 in words is "twelve billion, two hundred seventy-four million, one hundred ninety-seven thousand, eight hundred eighty-eight".