16277827827789 has 18 divisors (see below), whose sum is σ = 25844228022158. Its totient is φ = 9865350198000.

The previous prime is 16277827827743. The next prime is 16277827827803. The reversal of 16277827827789 is 98772872877261.

16277827827789 is a `hidden beast` number, since 1 + 6 + 2 + 7 + 78 + 278 + 277 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8906374766025 + 7371453061764 = 2984355^2 + 2715042^2 .

It is not a de Polignac number, because 16277827827789 - 2³⁶ = 16209108351053 is a prime.

It is a super-2 number, since 2×16277827827789² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16277827827089) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7473749062 + ... + 7473751239.

Almost surely, 2^{16277827827789} is an apocalyptic number.

It is an amenable number.

16277827827789 is a deficient number, since it is larger than the sum of its proper divisors (9566400194369).

16277827827789 is a wasteful number, since it uses less digits than its factorization.

16277827827789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14947500329 (or 14947500315 counting only the distinct ones).

The product of its digits is 3717439488, while the sum is 81.

The spelling of 16277827827789 in words is "sixteen trillion, two hundred seventy-seven billion, eight hundred twenty-seven million, eight hundred twenty-seven thousand, seven hundred eighty-nine".