213770805883 has 4 divisors (see below), whose sum is σ = 214602599160. Its totient is φ = 212939012608.

The previous prime is 213770805869. The next prime is 213770805887. The reversal of 213770805883 is 388508077312.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213770805883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213770805883.

It is not an unprimeable number, because it can be changed into a prime (213770805887) 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, 415896253 + ... + 415896766.

It is an arithmetic number, because the mean of its divisors is an integer number (53650649790).

Almost surely, 2^213770805883 is an apocalyptic number.

213770805883 is a deficient number, since it is larger than the sum of its proper divisors (831793277).

213770805883 is an equidigital number, since it uses as much as digits as its factorization.

213770805883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831793276.

The product of its (nonzero) digits is 2257920, while the sum is 52.

The spelling of 213770805883 in words is "two hundred thirteen billion, seven hundred seventy million, eight hundred five thousand, eight hundred eighty-three".