4518961919 has 8 divisors (see below), whose sum is σ = 4757501040. Its totient is φ = 4280492736.

The previous prime is 4518961907. The next prime is 4518961933. The reversal of 4518961919 is 9191698154.

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

It is a cyclic number.

It is not a de Polignac number, because 4518961919 - 2²⁰ = 4517913343 is a prime.

It is a super-2 number, since 2×4518961919² = 40842033650744325122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4518961939) 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, 163037 + ... + 188729.

It is an arithmetic number, because the mean of its divisors is an integer number (594687630).

Almost surely, 2^4518961919 is an apocalyptic number.

4518961919 is a deficient number, since it is larger than the sum of its proper divisors (238539121).

4518961919 is a wasteful number, since it uses less digits than its factorization.

4518961919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34969.

The product of its digits is 699840, while the sum is 53.

The square root of 4518961919 is about 67223.2245507459. The cubic root of 4518961919 is about 1653.2792962967.

The spelling of 4518961919 in words is "four billion, five hundred eighteen million, nine hundred sixty-one thousand, nine hundred nineteen".