6672015913 has 4 divisors (see below), whose sum is σ = 6672374020. Its totient is φ = 6671657808.

The previous prime is 6672015907. The next prime is 6672015943. The reversal of 6672015913 is 3195102766.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2678787049 + 3993228864 = 51757^2 + 63192^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6672015913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6672015943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149478 + ... + 188911.

It is an arithmetic number, because the mean of its divisors is an integer number (1668093505).

Almost surely, 2^6672015913 is an apocalyptic number.

It is an amenable number.

6672015913 is a deficient number, since it is larger than the sum of its proper divisors (358107).

6672015913 is a wasteful number, since it uses less digits than its factorization.

6672015913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358106.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 6672015913 is about 81682.4088344608. The cubic root of 6672015913 is about 1882.5753065387.

The spelling of 6672015913 in words is "six billion, six hundred seventy-two million, fifteen thousand, nine hundred thirteen".