1999380023199 has 96 divisors (see below), whose sum is σ = 3230010201600. Its totient is φ = 1183313214720.

The previous prime is 1999380023167. The next prime is 1999380023219. The reversal of 1999380023199 is 9913200839991.

1999380023199 is a `hidden beast` number, since 19 + 9 + 9 + 380 + 0 + 231 + 9 + 9 = 666.

It is not a de Polignac number, because 1999380023199 - 2⁵ = 1999380023167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1999380024199) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1282475182 + ... + 1282476740.

It is an arithmetic number, because the mean of its divisors is an integer number (33645939600).

Almost surely, 2^{1999380023199} is an apocalyptic number.

1999380023199 is a deficient number, since it is larger than the sum of its proper divisors (1230630178401).

1999380023199 is a wasteful number, since it uses less digits than its factorization.

1999380023199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2845 (or 2842 counting only the distinct ones).

The product of its (nonzero) digits is 8503056, while the sum is 63.

The spelling of 1999380023199 in words is "one trillion, nine hundred ninety-nine billion, three hundred eighty million, twenty-three thousand, one hundred ninety-nine".