16973890445 has 8 divisors (see below), whose sum is σ = 21440703840. Its totient is φ = 12864422160.

The previous prime is 16973890387. The next prime is 16973890469. The reversal of 16973890445 is 54409837961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16973890445 - 2⁸ = 16973890189 is a prime.

It is a super-2 number, since 2×16973890445² (a number of 21 digits) contains 22 as substring.

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 in 7 ways as a sum of consecutive naturals, for example, 89336171 + ... + 89336360.

It is an arithmetic number, because the mean of its divisors is an integer number (2680087980).

Almost surely, 2^16973890445 is an apocalyptic number.

It is an amenable number.

16973890445 is a deficient number, since it is larger than the sum of its proper divisors (4466813395).

16973890445 is a wasteful number, since it uses less digits than its factorization.

16973890445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178672555.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 16973890445 in words is "sixteen billion, nine hundred seventy-three million, eight hundred ninety thousand, four hundred forty-five".