2136888787111 has 32 divisors (see below), whose sum is σ = 2385608436288. Its totient is φ = 1901296696320.

The previous prime is 2136888787109. The next prime is 2136888787127. The reversal of 2136888787111 is 1117878886312.

It is a cyclic number.

It is not a de Polignac number, because 2136888787111 - 2¹ = 2136888787109 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 2136888787111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136888787171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23337160 + ... + 23428546.

It is an arithmetic number, because the mean of its divisors is an integer number (74550263634).

Almost surely, 2^{2136888787111} is an apocalyptic number.

2136888787111 is a deficient number, since it is larger than the sum of its proper divisors (248719649177).

2136888787111 is a wasteful number, since it uses less digits than its factorization.

2136888787111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91891.

The product of its digits is 7225344, while the sum is 61.

The spelling of 2136888787111 in words is "two trillion, one hundred thirty-six billion, eight hundred eighty-eight million, seven hundred eighty-seven thousand, one hundred eleven".