12309495040 has 72 divisors (see below), whose sum is σ = 31036995360. Its totient is φ = 4664641536.

The previous prime is 12309495001. The next prime is 12309495043. The reversal of 12309495040 is 4059490321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12309495043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228754 + ... + 277393.

It is an arithmetic number, because the mean of its divisors is an integer number (431069380).

Almost surely, 2^12309495040 is an apocalyptic number.

12309495040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12309495040 is an abundant number, since it is smaller than the sum of its proper divisors (18727500320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12309495040 is an equidigital number, since it uses as much as digits as its factorization.

12309495040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506187 (or 506173 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 12309495040 in words is "twelve billion, three hundred nine million, four hundred ninety-five thousand, forty".