12054349999 has 4 divisors (see below), whose sum is σ = 12057240064. Its totient is φ = 12051459936.

The previous prime is 12054349997. The next prime is 12054350069. The reversal of 12054349999 is 99994345021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12054349999 - 2¹ = 12054349997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12054349997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1438767 + ... + 1447120.

It is an arithmetic number, because the mean of its divisors is an integer number (3014310016).

Almost surely, 2^12054349999 is an apocalyptic number.

12054349999 is a deficient number, since it is larger than the sum of its proper divisors (2890065).

12054349999 is an equidigital number, since it uses as much as digits as its factorization.

12054349999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2890064.

The product of its (nonzero) digits is 3149280, while the sum is 55.

The spelling of 12054349999 in words is "twelve billion, fifty-four million, three hundred forty-nine thousand, nine hundred ninety-nine".