16894638009426 has 32 divisors (see below), whose sum is σ = 34118943326208. Its totient is φ = 5576606632080.

The previous prime is 16894638009241. The next prime is 16894638009499. The reversal of 16894638009426 is 62490083649861.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12629871 + ... + 13903341.

It is an arithmetic number, because the mean of its divisors is an integer number (1066216978944).

Almost surely, 2^{16894638009426} is an apocalyptic number.

16894638009426 is an abundant number, since it is smaller than the sum of its proper divisors (17224305316782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16894638009426 is a wasteful number, since it uses less digits than its factorization.

16894638009426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295046.

The product of its (nonzero) digits is 107495424, while the sum is 66.

The spelling of 16894638009426 in words is "sixteen trillion, eight hundred ninety-four billion, six hundred thirty-eight million, nine thousand, four hundred twenty-six".