16870001687 has 16 divisors (see below), whose sum is σ = 21120025344. Its totient is φ = 13090896000.

The previous prime is 16870001657. The next prime is 16870001689. The reversal of 16870001687 is 78610007861.

It is not a de Polignac number, because 16870001687 - 2¹⁰ = 16870000663 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16870001689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435989 + ... + 473102.

It is an arithmetic number, because the mean of its divisors is an integer number (1320001584).

Almost surely, 2^16870001687 is an apocalyptic number.

16870001687 is a deficient number, since it is larger than the sum of its proper divisors (4250023657).

16870001687 is a wasteful number, since it uses less digits than its factorization.

16870001687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909350.

The product of its (nonzero) digits is 112896, while the sum is 44.

The spelling of 16870001687 in words is "sixteen billion, eight hundred seventy million, one thousand, six hundred eighty-seven".