2973945818 has 16 divisors (see below), whose sum is σ = 4585346304. Its totient is φ = 1445564880.

The previous prime is 2973945787. The next prime is 2973945829. The reversal of 2973945818 is 8185493792.

It is an unprimeable number.

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, 74771 + ... + 107417.

It is an arithmetic number, because the mean of its divisors is an integer number (286584144).

Almost surely, 2^2973945818 is an apocalyptic number.

2973945818 is a deficient number, since it is larger than the sum of its proper divisors (1611400486).

2973945818 is a wasteful number, since it uses less digits than its factorization.

2973945818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33917.

The product of its digits is 4354560, while the sum is 56.

The square root of 2973945818 is about 54533.8960464040. The cubic root of 2973945818 is about 1438.0622434584.

It can be divided in two parts, 29739 and 45818, that added together give a palindrome (75557).

The spelling of 2973945818 in words is "two billion, nine hundred seventy-three million, nine hundred forty-five thousand, eight hundred eighteen".