192861739676089 has 27 divisors (see below), whose sum is σ = 212446398399949. Its totient is φ = 174950976273920.

The previous prime is 192861739676087. The next prime is 192861739676113. The reversal of 192861739676089 is 980676937168291.

The square root of 192861739676089 is 13887467.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3881510724025 + 188980228952064 = 1970155^2 + 13747008^2 .

It is not a de Polignac number, because 192861739676089 - 2¹ = 192861739676087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (192861739676087) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 90587946177 + ... + 90587948305.

Almost surely, 2^{192861739676089} is an apocalyptic number.

192861739676089 is the 13887467-th square number.

192861739676089 is the 6943734-th centered octagonal number.

It is an amenable number.

192861739676089 is a deficient number, since it is larger than the sum of its proper divisors (19584658723860).

192861739676089 is an frugal number, since it uses more digits than its factorization.

192861739676089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5466 (or 2733 counting only the distinct ones).

The product of its (nonzero) digits is 2962842624, while the sum is 82.

The spelling of 192861739676089 in words is "one hundred ninety-two trillion, eight hundred sixty-one billion, seven hundred thirty-nine million, six hundred seventy-six thousand, eighty-nine".