16863196845 has 32 divisors (see below), whose sum is σ = 29725398144. Its totient is φ = 8095136000.

The previous prime is 16863196799. The next prime is 16863196853. The reversal of 16863196845 is 54869136861.

It is not a de Polignac number, because 16863196845 - 2⁷ = 16863196717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 489282 + ... + 522611.

It is an arithmetic number, because the mean of its divisors is an integer number (928918692).

Almost surely, 2^16863196845 is an apocalyptic number.

16863196845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16863196845 is a deficient number, since it is larger than the sum of its proper divisors (12862201299).

16863196845 is a wasteful number, since it uses less digits than its factorization.

16863196845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012013.

The product of its digits is 7464960, while the sum is 57.

The spelling of 16863196845 in words is "sixteen billion, eight hundred sixty-three million, one hundred ninety-six thousand, eight hundred forty-five".