19990034330179 has 2 divisors, whose sum is σ = 19990034330180. Its totient is φ = 19990034330178.

The previous prime is 19990034330159. The next prime is 19990034330207. The reversal of 19990034330179 is 97103343009991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19990034330179 - 2⁹ = 19990034329667 is a prime.

It is not a weakly prime, because it can be changed into another prime (19990034330129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9995017165089 + 9995017165090.

It is an arithmetic number, because the mean of its divisors is an integer number (9995017165090).

Almost surely, 2^{19990034330179} is an apocalyptic number.

19990034330179 is a deficient number, since it is larger than the sum of its proper divisors (1).

19990034330179 is an equidigital number, since it uses as much as digits as its factorization.

19990034330179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4960116, while the sum is 58.

The spelling of 19990034330179 in words is "nineteen trillion, nine hundred ninety billion, thirty-four million, three hundred thirty thousand, one hundred seventy-nine".