2133877947 has 4 divisors (see below), whose sum is σ = 2845170600. Its totient is φ = 1422585296.

The previous prime is 2133877943. The next prime is 2133877979. The reversal of 2133877947 is 7497783312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2133877947 - 2² = 2133877943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2133877947.

It is not an unprimeable number, because it can be changed into a prime (2133877943) 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, 355646322 + ... + 355646327.

It is an arithmetic number, because the mean of its divisors is an integer number (711292650).

Almost surely, 2^2133877947 is an apocalyptic number.

2133877947 is a deficient number, since it is larger than the sum of its proper divisors (711292653).

2133877947 is an equidigital number, since it uses as much as digits as its factorization.

2133877947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711292652.

The product of its digits is 1778112, while the sum is 51.

The square root of 2133877947 is about 46193.9167748309. The cubic root of 2133877947 is about 1287.4287157190.

The spelling of 2133877947 in words is "two billion, one hundred thirty-three million, eight hundred seventy-seven thousand, nine hundred forty-seven".