6535199843 has 2 divisors, whose sum is σ = 6535199844. Its totient is φ = 6535199842.

The previous prime is 6535199837. The next prime is 6535199873. The reversal of 6535199843 is 3489915356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6535199843 - 2¹⁰ = 6535198819 is a prime.

It is not a weakly prime, because it can be changed into another prime (6535199833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3267599921 + 3267599922.

It is an arithmetic number, because the mean of its divisors is an integer number (3267599922).

Almost surely, 2^6535199843 is an apocalyptic number.

6535199843 is a deficient number, since it is larger than the sum of its proper divisors (1).

6535199843 is an equidigital number, since it uses as much as digits as its factorization.

6535199843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3499200, while the sum is 53.

The square root of 6535199843 is about 80840.5828962162. The cubic root of 6535199843 is about 1869.6183310780.

The spelling of 6535199843 in words is "six billion, five hundred thirty-five million, one hundred ninety-nine thousand, eight hundred forty-three".