168828503987 has 16 divisors (see below), whose sum is σ = 200572575840. Its totient is φ = 140082412800.

The previous prime is 168828503983. The next prime is 168828503989. The reversal of 168828503987 is 789305828861.

It is not a de Polignac number, because 168828503987 - 2² = 168828503983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (168828503983) 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 15 ways as a sum of consecutive naturals, for example, 6619964 + ... + 6645417.

It is an arithmetic number, because the mean of its divisors is an integer number (12535785990).

Almost surely, 2^168828503987 is an apocalyptic number.

168828503987 is a deficient number, since it is larger than the sum of its proper divisors (31744071853).

168828503987 is a wasteful number, since it uses less digits than its factorization.

168828503987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13265494.

The product of its (nonzero) digits is 46448640, while the sum is 65.

The spelling of 168828503987 in words is "one hundred sixty-eight billion, eight hundred twenty-eight million, five hundred three thousand, nine hundred eighty-seven".