12269021579 has 12 divisors (see below), whose sum is σ = 12413275056. Its totient is φ = 12126384288.

The previous prime is 12269021473. The next prime is 12269021587. The reversal of 12269021579 is 97512096221.

It is a de Polignac number, because none of the positive numbers 2^k-12269021579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12269021599) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5975117 + ... + 5977169.

It is an arithmetic number, because the mean of its divisors is an integer number (1034439588).

Almost surely, 2^12269021579 is an apocalyptic number.

12269021579 is a deficient number, since it is larger than the sum of its proper divisors (144253477).

12269021579 is an equidigital number, since it uses as much as digits as its factorization.

12269021579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2774 (or 2665 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 44.

The spelling of 12269021579 in words is "twelve billion, two hundred sixty-nine million, twenty-one thousand, five hundred seventy-nine".