12975459444 has 96 divisors (see below), whose sum is σ = 35075174400. Its totient is φ = 4143000960.

The previous prime is 12975459443. The next prime is 12975459451. The reversal of 12975459444 is 44495457921.

12975459444 is a `hidden beast` number, since 1 + 2 + 9 + 7 + 5 + 4 + 594 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12975459443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381454 + ... + 414074.

It is an arithmetic number, because the mean of its divisors is an integer number (365366400).

Almost surely, 2^12975459444 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 12975459444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17537587200).

12975459444 is an abundant number, since it is smaller than the sum of its proper divisors (22099714956).

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

12975459444 is a wasteful number, since it uses less digits than its factorization.

12975459444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32790 (or 32782 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 12975459444 in words is "twelve billion, nine hundred seventy-five million, four hundred fifty-nine thousand, four hundred forty-four".