2169779023143 has 6 divisors (see below), whose sum is σ = 3134125255664. Its totient is φ = 1446519348756.

The previous prime is 2169779023123. The next prime is 2169779023151. The reversal of 2169779023143 is 3413209779612.

2169779023143 is a `hidden beast` number, since 216 + 9 + 77 + 90 + 231 + 43 = 666.

It is not a de Polignac number, because 2169779023143 - 2⁶ = 2169779023079 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2169779023143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2169779023123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 120543279055 + ... + 120543279072.

Almost surely, 2^{2169779023143} is an apocalyptic number.

2169779023143 is a deficient number, since it is larger than the sum of its proper divisors (964346232521).

2169779023143 is a wasteful number, since it uses less digits than its factorization.

2169779023143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241086558133 (or 241086558130 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The spelling of 2169779023143 in words is "two trillion, one hundred sixty-nine billion, seven hundred seventy-nine million, twenty-three thousand, one hundred forty-three".