16923863197 has 8 divisors (see below), whose sum is σ = 17661407040. Its totient is φ = 16186463040.

The previous prime is 16923863113. The next prime is 16923863221. The reversal of 16923863197 is 79136832961.

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

It is a cyclic number.

It is not a de Polignac number, because 16923863197 - 2¹⁹ = 16923338909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16923863107) 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, 254997 + ... + 314437.

It is an arithmetic number, because the mean of its divisors is an integer number (2207675880).

Almost surely, 2^16923863197 is an apocalyptic number.

It is an amenable number.

16923863197 is a deficient number, since it is larger than the sum of its proper divisors (737543843).

16923863197 is a wasteful number, since it uses less digits than its factorization.

16923863197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71843.

The product of its digits is 2939328, while the sum is 55.

The spelling of 16923863197 in words is "sixteen billion, nine hundred twenty-three million, eight hundred sixty-three thousand, one hundred ninety-seven".