4999436543 has 2 divisors, whose sum is σ = 4999436544. Its totient is φ = 4999436542.

The previous prime is 4999436539. The next prime is 4999436549. The reversal of 4999436543 is 3456349994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4999436543 - 2² = 4999436539 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4999436549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2499718271 + 2499718272.

It is an arithmetic number, because the mean of its divisors is an integer number (2499718272).

Almost surely, 2^4999436543 is an apocalyptic number.

4999436543 is a deficient number, since it is larger than the sum of its proper divisors (1).

4999436543 is an equidigital number, since it uses as much as digits as its factorization.

4999436543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12597120, while the sum is 56.

The square root of 4999436543 is about 70706.6937637449. The cubic root of 4999436543 is about 1709.9117110692.

The spelling of 4999436543 in words is "four billion, nine hundred ninety-nine million, four hundred thirty-six thousand, five hundred forty-three".