192497794289 has 2 divisors, whose sum is σ = 192497794290. Its totient is φ = 192497794288.

The previous prime is 192497794267. The next prime is 192497794327. The reversal of 192497794289 is 982497794291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180376885264 + 12120909025 = 424708^2 + 110095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-192497794289 is a prime.

It is a super-2 number, since 2×192497794289² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (192497794259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96248897144 + 96248897145.

It is an arithmetic number, because the mean of its divisors is an integer number (96248897145).

Almost surely, 2^192497794289 is an apocalyptic number.

It is an amenable number.

192497794289 is a deficient number, since it is larger than the sum of its proper divisors (1).

192497794289 is an equidigital number, since it uses as much as digits as its factorization.

192497794289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 164602368, while the sum is 71.

The spelling of 192497794289 in words is "one hundred ninety-two billion, four hundred ninety-seven million, seven hundred ninety-four thousand, two hundred eighty-nine".