12328926491 has 8 divisors (see below), whose sum is σ = 14093276160. Its totient is φ = 10565345448.

The previous prime is 12328926487. The next prime is 12328926497. The reversal of 12328926491 is 19462982321.

It is a happy number.

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

It is not a de Polignac number, because 12328926491 - 2² = 12328926487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12328926497) 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, 157361 + ... + 222306.

It is an arithmetic number, because the mean of its divisors is an integer number (1761659520).

Almost surely, 2^12328926491 is an apocalyptic number.

12328926491 is a deficient number, since it is larger than the sum of its proper divisors (1764349669).

12328926491 is an equidigital number, since it uses as much as digits as its factorization.

12328926491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384313.

The product of its digits is 373248, while the sum is 47.

The spelling of 12328926491 in words is "twelve billion, three hundred twenty-eight million, nine hundred twenty-six thousand, four hundred ninety-one".