119999999999891 has 48 divisors (see below), whose sum is σ = 136761124526208. Its totient is φ = 104414657760000.

The previous prime is 119999999999879. The next prime is 119999999999941. The reversal of 119999999999891 is 198999999999911.

It is not a de Polignac number, because 119999999999891 - 2¹⁰ = 119999999998867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (119999999999821) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 489172016 + ... + 489417266.

It is an arithmetic number, because the mean of its divisors is an integer number (2849190094296).

Almost surely, 2^{119999999999891} is an apocalyptic number.

119999999999891 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

119999999999891 is a deficient number, since it is larger than the sum of its proper divisors (16761124526317).

119999999999891 is a wasteful number, since it uses less digits than its factorization.

119999999999891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245780 (or 245751 counting only the distinct ones).

The product of its digits is 251048476872, while the sum is 110.

The spelling of 119999999999891 in words is "one hundred nineteen trillion, nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, eight hundred ninety-one".