213474031673 has 4 divisors (see below), whose sum is σ = 243970321920. Its totient is φ = 182977741428.

The previous prime is 213474031637. The next prime is 213474031721. The reversal of 213474031673 is 376130474312.

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 213474031673 - 2⁸ = 213474031417 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 213474031673.

It is not an unprimeable number, because it can be changed into a prime (213474031633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15248145113 + ... + 15248145126.

It is an arithmetic number, because the mean of its divisors is an integer number (60992580480).

Almost surely, 2^213474031673 is an apocalyptic number.

It is an amenable number.

213474031673 is a deficient number, since it is larger than the sum of its proper divisors (30496290247).

213474031673 is an equidigital number, since it uses as much as digits as its factorization.

213474031673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30496290246.

The product of its (nonzero) digits is 254016, while the sum is 41.

The spelling of 213474031673 in words is "two hundred thirteen billion, four hundred seventy-four million, thirty-one thousand, six hundred seventy-three".