4494019686 has 32 divisors (see below), whose sum is σ = 9684618720. Its totient is φ = 1382033664.

The previous prime is 4494019681. The next prime is 4494019693. The reversal of 4494019686 is 6869104944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4494019681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141000 + ... + 169908.

It is an arithmetic number, because the mean of its divisors is an integer number (302644335).

Almost surely, 2^4494019686 is an apocalyptic number.

4494019686 is an abundant number, since it is smaller than the sum of its proper divisors (5190599034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4494019686 is a wasteful number, since it uses less digits than its factorization.

4494019686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30920.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 4494019686 is about 67037.4498769158. The cubic root of 4494019686 is about 1650.2319460891.

The spelling of 4494019686 in words is "four billion, four hundred ninety-four million, nineteen thousand, six hundred eighty-six".