12038497579 has 4 divisors (see below), whose sum is σ = 12039222280. Its totient is φ = 12037772880.

The previous prime is 12038497577. The next prime is 12038497621. The reversal of 12038497579 is 97579483021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12038497579 - 2¹ = 12038497577 is a prime.

It is a super-2 number, since 2×12038497579² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12038497573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336834 + ... + 370855.

It is an arithmetic number, because the mean of its divisors is an integer number (3009805570).

Almost surely, 2^12038497579 is an apocalyptic number.

12038497579 is a deficient number, since it is larger than the sum of its proper divisors (724701).

12038497579 is an equidigital number, since it uses as much as digits as its factorization.

12038497579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724700.

The product of its (nonzero) digits is 3810240, while the sum is 55.

The spelling of 12038497579 in words is "twelve billion, thirty-eight million, four hundred ninety-seven thousand, five hundred seventy-nine".