119869887491 has 2 divisors, whose sum is σ = 119869887492. Its totient is φ = 119869887490.

The previous prime is 119869887463. The next prime is 119869887563. The reversal of 119869887491 is 194788968911.

It is a weak prime.

It is an emirp because it is prime and its reverse (194788968911) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-119869887491 is a prime.

It is not a weakly prime, because it can be changed into another prime (119869880491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59934943745 + 59934943746.

It is an arithmetic number, because the mean of its divisors is an integer number (59934943746).

Almost surely, 2^119869887491 is an apocalyptic number.

119869887491 is a deficient number, since it is larger than the sum of its proper divisors (1).

119869887491 is an equidigital number, since it uses as much as digits as its factorization.

119869887491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62705664, while the sum is 71.

The spelling of 119869887491 in words is "one hundred nineteen billion, eight hundred sixty-nine million, eight hundred eighty-seven thousand, four hundred ninety-one".