16919169854 has 4 divisors (see below), whose sum is σ = 25378754784. Its totient is φ = 8459584926.

The previous prime is 16919169823. The next prime is 16919169877. The reversal of 16919169854 is 45896191961.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×16919169854³ (a number of 32 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16919169793 and 16919169802.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4229792462 + ... + 4229792465.

It is an arithmetic number, because the mean of its divisors is an integer number (6344688696).

Almost surely, 2^16919169854 is an apocalyptic number.

16919169854 is a deficient number, since it is larger than the sum of its proper divisors (8459584930).

16919169854 is an equidigital number, since it uses as much as digits as its factorization.

16919169854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8459584929.

The product of its digits is 4199040, while the sum is 59.

The spelling of 16919169854 in words is "sixteen billion, nine hundred nineteen million, one hundred sixty-nine thousand, eight hundred fifty-four".