3149372378909 has 4 divisors (see below), whose sum is σ = 3149377513920. Its totient is φ = 3149367243900.

The previous prime is 3149372378899. The next prime is 3149372378939. The reversal of 3149372378909 is 9098732739413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3149372378909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3149372378939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1499429 + ... + 2923530.

It is an arithmetic number, because the mean of its divisors is an integer number (787344378480).

Almost surely, 2^{3149372378909} is an apocalyptic number.

It is an amenable number.

3149372378909 is a deficient number, since it is larger than the sum of its proper divisors (5135011).

3149372378909 is an equidigital number, since it uses as much as digits as its factorization.

3149372378909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5135010.

The product of its (nonzero) digits is 61725888, while the sum is 65.

The spelling of 3149372378909 in words is "three trillion, one hundred forty-nine billion, three hundred seventy-two million, three hundred seventy-eight thousand, nine hundred nine".