2136788473 has 4 divisors (see below), whose sum is σ = 2144913408. Its totient is φ = 2128663540.

The previous prime is 2136788471. The next prime is 2136788483. The reversal of 2136788473 is 3748876312.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2136788473 - 2¹ = 2136788471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2136788471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4062073 + ... + 4062598.

It is an arithmetic number, because the mean of its divisors is an integer number (536228352).

Almost surely, 2^2136788473 is an apocalyptic number.

It is an amenable number.

2136788473 is a deficient number, since it is larger than the sum of its proper divisors (8124935).

2136788473 is an equidigital number, since it uses as much as digits as its factorization.

2136788473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8124934.

The product of its digits is 1354752, while the sum is 49.

The square root of 2136788473 is about 46225.4093870460. The cubic root of 2136788473 is about 1288.0137839224.

The spelling of 2136788473 in words is "two billion, one hundred thirty-six million, seven hundred eighty-eight thousand, four hundred seventy-three".