4049718643 has 2 divisors, whose sum is σ = 4049718644. Its totient is φ = 4049718642.

The previous prime is 4049718613. The next prime is 4049718683. The reversal of 4049718643 is 3468179404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4049718643 - 2¹⁷ = 4049587571 is a prime.

It is a super-2 number, since 2×4049718643² = 32800442174923522898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4049718593 and 4049718602.

It is not a weakly prime, because it can be changed into another prime (4049718613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2024859321 + 2024859322.

It is an arithmetic number, because the mean of its divisors is an integer number (2024859322).

Almost surely, 2^4049718643 is an apocalyptic number.

4049718643 is a deficient number, since it is larger than the sum of its proper divisors (1).

4049718643 is an equidigital number, since it uses as much as digits as its factorization.

4049718643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 4049718643 is about 63637.3997190331. The cubic root of 4049718643 is about 1593.9509410145.

The spelling of 4049718643 in words is "four billion, forty-nine million, seven hundred eighteen thousand, six hundred forty-three".