4718438019 has 12 divisors (see below), whose sum is σ = 6818183736. Its totient is φ = 3144396672.

The previous prime is 4718437993. The next prime is 4718438047. The reversal of 4718438019 is 9108348174.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-4718438019 is a prime.

It is a super-2 number, since 2×4718438019² = 44527314678289288722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (4718438119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77757 + ... + 124430.

It is an arithmetic number, because the mean of its divisors is an integer number (568181978).

Almost surely, 2^4718438019 is an apocalyptic number.

4718438019 is a deficient number, since it is larger than the sum of its proper divisors (2099745717).

4718438019 is a wasteful number, since it uses less digits than its factorization.

4718438019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204786 (or 204783 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 4718438019 is about 68690.8874524125. The cubic root of 4718438019 is about 1677.2562473587.

The spelling of 4718438019 in words is "four billion, seven hundred eighteen million, four hundred thirty-eight thousand, nineteen".