4494981139 has 8 divisors (see below), whose sum is σ = 4986728640. Its totient is φ = 4017085800.

The previous prime is 4494981109. The next prime is 4494981173. The reversal of 4494981139 is 9311894944.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-4494981139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4494981109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3462357 + ... + 3463654.

It is an arithmetic number, because the mean of its divisors is an integer number (623341080).

Almost surely, 2^4494981139 is an apocalyptic number.

4494981139 is a deficient number, since it is larger than the sum of its proper divisors (491747501).

4494981139 is a wasteful number, since it uses less digits than its factorization.

4494981139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6926081.

The product of its digits is 1119744, while the sum is 52.

The square root of 4494981139 is about 67044.6205075396. The cubic root of 4494981139 is about 1650.3496215357.

The spelling of 4494981139 in words is "four billion, four hundred ninety-four million, nine hundred eighty-one thousand, one hundred thirty-nine".