2136194775 has 144 divisors (see below), whose sum is σ = 4663451520. Its totient is φ = 955670400.

The previous prime is 2136194659. The next prime is 2136194843. The reversal of 2136194775 is 5774916312.

2136194775 is a `hidden beast` number, since 21 + 3 + 619 + 4 + 7 + 7 + 5 = 666.

It is not a de Polignac number, because 2136194775 - 2⁷ = 2136194647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2136194775.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 867496 + ... + 869954.

It is an arithmetic number, because the mean of its divisors is an integer number (32385080).

Almost surely, 2^2136194775 is an apocalyptic number.

2136194775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2136194775 is an abundant number, since it is smaller than the sum of its proper divisors (2527256745).

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

2136194775 is a wasteful number, since it uses less digits than its factorization.

2136194775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508 (or 2491 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 2136194775 is about 46218.9871697769. The cubic root of 2136194775 is about 1287.8944830728.

The spelling of 2136194775 in words is "two billion, one hundred thirty-six million, one hundred ninety-four thousand, seven hundred seventy-five".