16943415049 has 4 divisors (see below), whose sum is σ = 18483725520. Its totient is φ = 15403104580.

The previous prime is 16943415043. The next prime is 16943415169. The reversal of 16943415049 is 94051434961.

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 not a de Polignac number, because 16943415049 - 2⁵ = 16943415017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16943415043) 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, 770155219 + ... + 770155240.

It is an arithmetic number, because the mean of its divisors is an integer number (4620931380).

Almost surely, 2^16943415049 is an apocalyptic number.

It is an amenable number.

16943415049 is a deficient number, since it is larger than the sum of its proper divisors (1540310471).

16943415049 is a wasteful number, since it uses less digits than its factorization.

16943415049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540310470.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 16943415049 in words is "sixteen billion, nine hundred forty-three million, four hundred fifteen thousand, forty-nine".