4218740623 has 4 divisors (see below), whose sum is σ = 4218964960. Its totient is φ = 4218516288.

The previous prime is 4218740597. The next prime is 4218740627. The reversal of 4218740623 is 3260478124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4218740623 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 (4218740627) 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, 81090 + ... + 122527.

It is an arithmetic number, because the mean of its divisors is an integer number (1054741240).

Almost surely, 2^4218740623 is an apocalyptic number.

4218740623 is a deficient number, since it is larger than the sum of its proper divisors (224337).

4218740623 is a wasteful number, since it uses less digits than its factorization.

4218740623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224336.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 4218740623 is about 64951.8330996131. The cubic root of 4218740623 is about 1615.8248203595.

The spelling of 4218740623 in words is "four billion, two hundred eighteen million, seven hundred forty thousand, six hundred twenty-three".