12090193937 has 4 divisors (see below), whose sum is σ = 12109056036. Its totient is φ = 12071331840.

The previous prime is 12090193811. The next prime is 12090193949. The reversal of 12090193937 is 73939109021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73939109021 = 29 ⋅2549624449.

It can be written as a sum of positive squares in 2 ways, for example, as 9810704401 + 2279489536 = 99049^2 + 47744^2 .

It is a cyclic number.

It is not a de Polignac number, because 12090193937 - 2⁸ = 12090193681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12090193987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9430088 + ... + 9431369.

It is an arithmetic number, because the mean of its divisors is an integer number (3027264009).

Almost surely, 2^12090193937 is an apocalyptic number.

It is an amenable number.

12090193937 is a deficient number, since it is larger than the sum of its proper divisors (18862099).

12090193937 is an equidigital number, since it uses as much as digits as its factorization.

12090193937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18862098.

The product of its (nonzero) digits is 91854, while the sum is 44.

The spelling of 12090193937 in words is "twelve billion, ninety million, one hundred ninety-three thousand, nine hundred thirty-seven".