168327751387 has 4 divisors (see below), whose sum is σ = 168328875736. Its totient is φ = 168326627040.

The previous prime is 168327751381. The next prime is 168327751421. The reversal of 168327751387 is 783157723861.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 168327751387 - 2³⁵ = 133968013019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168327751381) 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, 295413 + ... + 651094.

It is an arithmetic number, because the mean of its divisors is an integer number (42082218934).

Almost surely, 2^168327751387 is an apocalyptic number.

168327751387 is a deficient number, since it is larger than the sum of its proper divisors (1124349).

168327751387 is an equidigital number, since it uses as much as digits as its factorization.

168327751387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124348.

The product of its digits is 11854080, while the sum is 58.

The spelling of 168327751387 in words is "one hundred sixty-eight billion, three hundred twenty-seven million, seven hundred fifty-one thousand, three hundred eighty-seven".