192051539891 has 2 divisors, whose sum is σ = 192051539892. Its totient is φ = 192051539890.

The previous prime is 192051539881. The next prime is 192051539893. The reversal of 192051539891 is 198935150291.

It is a strong prime.

It is an emirp because it is prime and its reverse (198935150291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 192051539891 - 2²⁶ = 191984431027 is a prime.

It is a Sophie Germain prime.

Together with 192051539893, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (192051539893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96025769945 + 96025769946.

It is an arithmetic number, because the mean of its divisors is an integer number (96025769946).

Almost surely, 2^192051539891 is an apocalyptic number.

192051539891 is a deficient number, since it is larger than the sum of its proper divisors (1).

192051539891 is an equidigital number, since it uses as much as digits as its factorization.

192051539891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 874800, while the sum is 53.

The spelling of 192051539891 in words is "one hundred ninety-two billion, fifty-one million, five hundred thirty-nine thousand, eight hundred ninety-one".