16919279984 has 40 divisors (see below), whose sum is σ = 33110849520. Its totient is φ = 8374658048.

The previous prime is 16919279981. The next prime is 16919280011. The reversal of 16919279984 is 48997291961.

It is a self number, because there is not a number n which added to its sum of digits gives 16919279984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16919279981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3375272 + ... + 3380280.

It is an arithmetic number, because the mean of its divisors is an integer number (827771238).

Almost surely, 2^16919279984 is an apocalyptic number.

It is an amenable number.

16919279984 is a deficient number, since it is larger than the sum of its proper divisors (16191569536).

16919279984 is a wasteful number, since it uses less digits than its factorization.

16919279984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7097 (or 7091 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 65.

The spelling of 16919279984 in words is "sixteen billion, nine hundred nineteen million, two hundred seventy-nine thousand, nine hundred eighty-four".