2133789477 has 4 divisors (see below), whose sum is σ = 2845052640. Its totient is φ = 1422526316.

The previous prime is 2133789467. The next prime is 2133789503. The reversal of 2133789477 is 7749873312.

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 2133789477 - 2⁴ = 2133789461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133789467) 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, 355631577 + ... + 355631582.

It is an arithmetic number, because the mean of its divisors is an integer number (711263160).

Almost surely, 2^2133789477 is an apocalyptic number.

It is an amenable number.

2133789477 is a deficient number, since it is larger than the sum of its proper divisors (711263163).

2133789477 is an equidigital number, since it uses as much as digits as its factorization.

2133789477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711263162.

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

The square root of 2133789477 is about 46192.9591712850. The cubic root of 2133789477 is about 1287.4109233248.

The spelling of 2133789477 in words is "two billion, one hundred thirty-three million, seven hundred eighty-nine thousand, four hundred seventy-seven".