168072431487 has 8 divisors (see below), whose sum is σ = 224100693936. Its totient is φ = 112046228352.

The previous prime is 168072431473. The next prime is 168072431491. The reversal of 168072431487 is 784134270861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 168072431487 - 2¹⁵ = 168072398719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168072431467) 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 7 ways as a sum of consecutive naturals, for example, 313098 + ... + 658919.

It is an arithmetic number, because the mean of its divisors is an integer number (28012586742).

Almost surely, 2^168072431487 is an apocalyptic number.

168072431487 is a deficient number, since it is larger than the sum of its proper divisors (56028262449).

168072431487 is an equidigital number, since it uses as much as digits as its factorization.

168072431487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029657.

The product of its (nonzero) digits is 1806336, while the sum is 51.

The spelling of 168072431487 in words is "one hundred sixty-eight billion, seventy-two million, four hundred thirty-one thousand, four hundred eighty-seven".