12192437391 has 16 divisors (see below), whose sum is σ = 16414272000. Its totient is φ = 8049500928.

The previous prime is 12192437363. The next prime is 12192437393. The reversal of 12192437391 is 19373429121.

It is not a de Polignac number, because 12192437391 - 2²⁵ = 12158882959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12192437393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1320810 + ... + 1330008.

It is an arithmetic number, because the mean of its divisors is an integer number (1025892000).

Almost surely, 2^12192437391 is an apocalyptic number.

12192437391 is a deficient number, since it is larger than the sum of its proper divisors (4221834609).

12192437391 is a wasteful number, since it uses less digits than its factorization.

12192437391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13438.

The product of its digits is 81648, while the sum is 42.

The spelling of 12192437391 in words is "twelve billion, one hundred ninety-two million, four hundred thirty-seven thousand, three hundred ninety-one".