12309001845 has 32 divisors (see below), whose sum is σ = 22534256640. Its totient is φ = 5620380480.

The previous prime is 12309001843. The next prime is 12309001853. The reversal of 12309001845 is 54810090321.

It is not a de Polignac number, because 12309001845 - 2¹ = 12309001843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12309001843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21960 + ... + 158430.

It is an arithmetic number, because the mean of its divisors is an integer number (704195520).

Almost surely, 2^12309001845 is an apocalyptic number.

12309001845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12309001845 is a deficient number, since it is larger than the sum of its proper divisors (10225254795).

12309001845 is a wasteful number, since it uses less digits than its factorization.

12309001845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137345.

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 12309001845 in words is "twelve billion, three hundred nine million, one thousand, eight hundred forty-five".