213782968033 has 4 divisors (see below), whose sum is σ = 218754665008. Its totient is φ = 208811271060.

The previous prime is 213782967967. The next prime is 213782968037. The reversal of 213782968033 is 330869287312.

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 a de Polignac number, because none of the positive numbers 2^k-213782968033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213782968037) 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, 2485848423 + ... + 2485848508.

It is an arithmetic number, because the mean of its divisors is an integer number (54688666252).

Almost surely, 2^213782968033 is an apocalyptic number.

It is an amenable number.

213782968033 is a deficient number, since it is larger than the sum of its proper divisors (4971696975).

213782968033 is an equidigital number, since it uses as much as digits as its factorization.

213782968033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4971696974.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 213782968033 in words is "two hundred thirteen billion, seven hundred eighty-two million, nine hundred sixty-eight thousand, thirty-three".