168029433392987 has 4 divisors (see below), whose sum is σ = 168043756943496. Its totient is φ = 168015109842480.

The previous prime is 168029433392983. The next prime is 168029433393001. The reversal of 168029433392987 is 789293334920861.

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 168029433392987 - 2² = 168029433392983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168029433392983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7161757658 + ... + 7161781119.

It is an arithmetic number, because the mean of its divisors is an integer number (42010939235874).

Almost surely, 2^{168029433392987} is an apocalyptic number.

168029433392987 is a deficient number, since it is larger than the sum of its proper divisors (14323550509).

168029433392987 is a wasteful number, since it uses less digits than its factorization.

168029433392987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14323550508.

The product of its (nonzero) digits is 846526464, while the sum is 74.

The spelling of 168029433392987 in words is "one hundred sixty-eight trillion, twenty-nine billion, four hundred thirty-three million, three hundred ninety-two thousand, nine hundred eighty-seven".