2133716786 has 4 divisors (see below), whose sum is σ = 3200575182. Its totient is φ = 1066858392.

The previous prime is 2133716729. The next prime is 2133716843. The reversal of 2133716786 is 6876173312.

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

It is an interprime number because it is at equal distance from previous prime (2133716729) and next prime (2133716843).

It can be written as a sum of positive squares in only one way, i.e., 2126593225 + 7123561 = 46115^2 + 2669^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533429195 + ... + 533429198.

Almost surely, 2^2133716786 is an apocalyptic number.

2133716786 is a deficient number, since it is larger than the sum of its proper divisors (1066858396).

2133716786 is a wasteful number, since it uses less digits than its factorization.

2133716786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066858395.

The product of its digits is 254016, while the sum is 44.

The square root of 2133716786 is about 46192.1723455392. The cubic root of 2133716786 is about 1287.3963039116.

The spelling of 2133716786 in words is "two billion, one hundred thirty-three million, seven hundred sixteen thousand, seven hundred eighty-six".