4918438436 has 24 divisors (see below), whose sum is σ = 9121243320. Its totient is φ = 2312612352.

The previous prime is 4918438423. The next prime is 4918438463. The reversal of 4918438436 is 6348348194.

It can be written as a sum of positive squares in 4 ways, for example, as 336502336 + 4581936100 = 18344^2 + 67690^2 .

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52670 + ... + 112298.

It is an arithmetic number, because the mean of its divisors is an integer number (380051805).

Almost surely, 2^4918438436 is an apocalyptic number.

It is an amenable number.

4918438436 is a deficient number, since it is larger than the sum of its proper divisors (4202804884).

4918438436 is a wasteful number, since it uses less digits than its factorization.

4918438436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60863 (or 60861 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 50.

The square root of 4918438436 is about 70131.5794489187. The cubic root of 4918438436 is about 1700.6270392785.

It can be divided in two parts, 49 and 18438436, that multiplied together give a square (903483364 = 30058²).

The spelling of 4918438436 in words is "four billion, nine hundred eighteen million, four hundred thirty-eight thousand, four hundred thirty-six".