12019478269 has 8 divisors (see below), whose sum is σ = 12095408160. Its totient is φ = 11943622896.

The previous prime is 12019478201. The next prime is 12019478291. The reversal of 12019478269 is 96287491021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12019478269 - 2²³ = 12011089661 is a prime.

It is a super-2 number, since 2×12019478269² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12019478969) 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, 324814 + ... + 359920.

It is an arithmetic number, because the mean of its divisors is an integer number (1511926020).

Almost surely, 2^12019478269 is an apocalyptic number.

It is an amenable number.

12019478269 is a deficient number, since it is larger than the sum of its proper divisors (75929891).

12019478269 is a wasteful number, since it uses less digits than its factorization.

12019478269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37259.

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 12019478269 in words is "twelve billion, nineteen million, four hundred seventy-eight thousand, two hundred sixty-nine".