16873187403 has 16 divisors (see below), whose sum is σ = 22563676800. Its totient is φ = 11215776000.

The previous prime is 16873187399. The next prime is 16873187543. The reversal of 16873187403 is 30478137861.

It is not a de Polignac number, because 16873187403 - 2² = 16873187399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16873187203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4084443 + ... + 4088571.

It is an arithmetic number, because the mean of its divisors is an integer number (1410229800).

Almost surely, 2^16873187403 is an apocalyptic number.

16873187403 is a deficient number, since it is larger than the sum of its proper divisors (5690489397).

16873187403 is a wasteful number, since it uses less digits than its factorization.

16873187403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7802.

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 16873187403 in words is "sixteen billion, eight hundred seventy-three million, one hundred eighty-seven thousand, four hundred three".