2136692868138 has 48 divisors (see below), whose sum is σ = 4802066863776. Its totient is φ = 712067377680.

The previous prime is 2136692868133. The next prime is 2136692868139. The reversal of 2136692868138 is 8318682966312.

It is a happy number.

2136692868138 is a `hidden beast` number, since 2 + 1 + 366 + 92 + 86 + 81 + 38 = 666.

It is not an unprimeable number, because it can be changed into a prime (2136692868133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1622593 + ... + 2627963.

It is an arithmetic number, because the mean of its divisors is an integer number (100043059662).

Almost surely, 2^{2136692868138} is an apocalyptic number.

2136692868138 is an abundant number, since it is smaller than the sum of its proper divisors (2665373995638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2136692868138 is a wasteful number, since it uses less digits than its factorization.

2136692868138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009761 (or 1009749 counting only the distinct ones).

The product of its digits is 35831808, while the sum is 63.

The spelling of 2136692868138 in words is "two trillion, one hundred thirty-six billion, six hundred ninety-two million, eight hundred sixty-eight thousand, one hundred thirty-eight".