4218019979473 has 4 divisors (see below), whose sum is σ = 4218243540660. Its totient is φ = 4217796418288.

The previous prime is 4218019979441. The next prime is 4218019979477. The reversal of 4218019979473 is 3749799108124.

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 3201780579904 + 1016239399569 = 1789352^2 + 1008087^2 .

It is a cyclic number.

It is not a de Polignac number, because 4218019979473 - 2⁵ = 4218019979441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4218019979477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111752290 + ... + 111790027.

It is an arithmetic number, because the mean of its divisors is an integer number (1054560885165).

Almost surely, 2^{4218019979473} is an apocalyptic number.

It is an amenable number.

4218019979473 is a deficient number, since it is larger than the sum of its proper divisors (223561187).

4218019979473 is a wasteful number, since it uses less digits than its factorization.

4218019979473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223561186.

The product of its (nonzero) digits is 27433728, while the sum is 64.

The spelling of 4218019979473 in words is "four trillion, two hundred eighteen billion, nineteen million, nine hundred seventy-nine thousand, four hundred seventy-three".