4118647493 has 4 divisors (see below), whose sum is σ = 4119845100. Its totient is φ = 4117449888.

The previous prime is 4118647469. The next prime is 4118647501. The reversal of 4118647493 is 3947468114.

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 210772324 + 3907875169 = 14518^2 + 62513^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4118647493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4118647453) 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, 593630 + ... + 600527.

It is an arithmetic number, because the mean of its divisors is an integer number (1029961275).

Almost surely, 2^4118647493 is an apocalyptic number.

It is an amenable number.

4118647493 is a deficient number, since it is larger than the sum of its proper divisors (1197607).

4118647493 is a wasteful number, since it uses less digits than its factorization.

4118647493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197606.

The product of its digits is 580608, while the sum is 47.

The square root of 4118647493 is about 64176.6896388401. The cubic root of 4118647493 is about 1602.9434739727.

The spelling of 4118647493 in words is "four billion, one hundred eighteen million, six hundred forty-seven thousand, four hundred ninety-three".