192817674421 has 2 divisors, whose sum is σ = 192817674422. Its totient is φ = 192817674420.

The previous prime is 192817674383. The next prime is 192817674433. The reversal of 192817674421 is 124476718291.

192817674421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182402451396 + 10415223025 = 427086^2 + 102055^2 .

It is an emirp because it is prime and its reverse (124476718291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 192817674421 - 2²⁹ = 192280803509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (192817674461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96408837210 + 96408837211.

It is an arithmetic number, because the mean of its divisors is an integer number (96408837211).

Almost surely, 2^192817674421 is an apocalyptic number.

It is an amenable number.

192817674421 is a deficient number, since it is larger than the sum of its proper divisors (1).

192817674421 is an equidigital number, since it uses as much as digits as its factorization.

192817674421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 52.

The spelling of 192817674421 in words is "one hundred ninety-two billion, eight hundred seventeen million, six hundred seventy-four thousand, four hundred twenty-one".