83608890019 has 2 divisors, whose sum is σ = 83608890020. Its totient is φ = 83608890018.

The previous prime is 83608889993. The next prime is 83608890067. The reversal of 83608890019 is 91009880638.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83608890019 is a prime.

It is a super-2 number, since 2×83608890019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (83608890919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41804445009 + 41804445010.

It is an arithmetic number, because the mean of its divisors is an integer number (41804445010).

Almost surely, 2^83608890019 is an apocalyptic number.

83608890019 is a deficient number, since it is larger than the sum of its proper divisors (1).

83608890019 is an equidigital number, since it uses as much as digits as its factorization.

83608890019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 52.

The spelling of 83608890019 in words is "eighty-three billion, six hundred eight million, eight hundred ninety thousand, nineteen".