16936728402861 has 10 divisors (see below), whose sum is σ = 25300544898222. Its totient is φ = 11291152268520.

The previous prime is 16936728402823. The next prime is 16936728402863. The reversal of 16936728402861 is 16820482763961.

16936728402861 is a `hidden beast` number, since 1 + 6 + 93 + 67 + 2 + 8 + 402 + 86 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16778240015625 + 158488387236 = 4096125^2 + 398106^2 .

It is not a de Polignac number, because 16936728402861 - 2³⁷ = 16799289449389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16936728402863) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 104547706110 + ... + 104547706271.

Almost surely, 2^{16936728402861} is an apocalyptic number.

It is an amenable number.

16936728402861 is a deficient number, since it is larger than the sum of its proper divisors (8363816495361).

16936728402861 is an equidigital number, since it uses as much as digits as its factorization.

16936728402861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209095412393 (or 209095412384 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 16936728402861 in words is "sixteen trillion, nine hundred thirty-six billion, seven hundred twenty-eight million, four hundred two thousand, eight hundred sixty-one".