16938364681479 has 16 divisors (see below), whose sum is σ = 23048146454112. Its totient is φ = 11061108160128.

The previous prime is 16938364681477. The next prime is 16938364681559. The reversal of 16938364681479 is 97418646383961.

It is not a de Polignac number, because 16938364681479 - 2¹ = 16938364681477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16938364681479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16938364681477) 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, 86795352 + ... + 86990285.

It is an arithmetic number, because the mean of its divisors is an integer number (1440509153382).

Almost surely, 2^{16938364681479} is an apocalyptic number.

16938364681479 is a deficient number, since it is larger than the sum of its proper divisors (6109781772633).

16938364681479 is a wasteful number, since it uses less digits than its factorization.

16938364681479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173786306.

The product of its digits is 1128701952, while the sum is 75.

The spelling of 16938364681479 in words is "sixteen trillion, nine hundred thirty-eight billion, three hundred sixty-four million, six hundred eighty-one thousand, four hundred seventy-nine".