4511138894 has 8 divisors (see below), whose sum is σ = 6768256320. Its totient is φ = 2255053456.

The previous prime is 4511138881. The next prime is 4511138903. The reversal of 4511138894 is 4988311154.

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

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 246974 + ... + 264609.

It is an arithmetic number, because the mean of its divisors is an integer number (846032040).

Almost surely, 2^4511138894 is an apocalyptic number.

4511138894 is a deficient number, since it is larger than the sum of its proper divisors (2257117426).

4511138894 is a wasteful number, since it uses less digits than its factorization.

4511138894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515994.

The product of its digits is 138240, while the sum is 44.

The square root of 4511138894 is about 67165.0124246248. The cubic root of 4511138894 is about 1652.3247174894.

The spelling of 4511138894 in words is "four billion, five hundred eleven million, one hundred thirty-eight thousand, eight hundred ninety-four".