192664379287 has 4 divisors (see below), whose sum is σ = 198879359296. Its totient is φ = 186449399280.

The previous prime is 192664379279. The next prime is 192664379351. The reversal of 192664379287 is 782973466291.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 192664379287 - 2³ = 192664379279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192664379087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3107489958 + ... + 3107490019.

It is an arithmetic number, because the mean of its divisors is an integer number (49719839824).

Almost surely, 2^192664379287 is an apocalyptic number.

192664379287 is a deficient number, since it is larger than the sum of its proper divisors (6214980009).

192664379287 is an equidigital number, since it uses as much as digits as its factorization.

192664379287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6214980008.

The product of its digits is 54867456, while the sum is 64.

The spelling of 192664379287 in words is "one hundred ninety-two billion, six hundred sixty-four million, three hundred seventy-nine thousand, two hundred eighty-seven".