2912439643 has 8 divisors (see below), whose sum is σ = 3246063120. Its totient is φ = 2596849920.

The previous prime is 2912439601. The next prime is 2912439661. The reversal of 2912439643 is 3469342192.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2912439643 - 2¹³ = 2912431451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2912439643.

It is not an unprimeable number, because it can be changed into a prime (2912439443) 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 7 ways as a sum of consecutive naturals, for example, 4508098 + ... + 4508743.

It is an arithmetic number, because the mean of its divisors is an integer number (405757890).

Almost surely, 2^2912439643 is an apocalyptic number.

2912439643 is a deficient number, since it is larger than the sum of its proper divisors (333623477).

2912439643 is a wasteful number, since it uses less digits than its factorization.

2912439643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9016877.

The product of its digits is 279936, while the sum is 43.

The square root of 2912439643 is about 53967.0236626034. The cubic root of 2912439643 is about 1428.0792578614.

The spelling of 2912439643 in words is "two billion, nine hundred twelve million, four hundred thirty-nine thousand, six hundred forty-three".