4345216819 has 12 divisors (see below), whose sum is σ = 4435886392. Its totient is φ = 4256366400.

The previous prime is 4345216817. The next prime is 4345216873. The reversal of 4345216819 is 9186125434.

It is not a de Polignac number, because 4345216819 - 2¹ = 4345216817 is a prime.

It is a super-2 number, since 2×4345216819² = 37761818408240957522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4345216817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3288679 + ... + 3289999.

Almost surely, 2^4345216819 is an apocalyptic number.

4345216819 is a deficient number, since it is larger than the sum of its proper divisors (90669573).

4345216819 is a wasteful number, since it uses less digits than its factorization.

4345216819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2598 (or 2545 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 4345216819 is about 65918.2586162590. The cubic root of 4345216819 is about 1631.8133581001.

The spelling of 4345216819 in words is "four billion, three hundred forty-five million, two hundred sixteen thousand, eight hundred nineteen".