4318924721 has 16 divisors (see below), whose sum is σ = 4436011008. Its totient is φ = 4203685200.

The previous prime is 4318924711. The next prime is 4318924723. The reversal of 4318924721 is 1274298134.

It is a de Polignac number, because none of the positive numbers 2^k-4318924721 is a prime.

It is a super-2 number, since 2×4318924721² = 37306221491329855682, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4318924723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2307416 + ... + 2309286.

It is an arithmetic number, because the mean of its divisors is an integer number (277250688).

Almost surely, 2^4318924721 is an apocalyptic number.

It is an amenable number.

4318924721 is a deficient number, since it is larger than the sum of its proper divisors (117086287).

4318924721 is a wasteful number, since it uses less digits than its factorization.

4318924721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332.

The product of its digits is 96768, while the sum is 41.

The square root of 4318924721 is about 65718.5264670473. The cubic root of 4318924721 is about 1628.5154311393.

The spelling of 4318924721 in words is "four billion, three hundred eighteen million, nine hundred twenty-four thousand, seven hundred twenty-one".