213374494773 has 48 divisors (see below), whose sum is σ = 374741640000. Its totient is φ = 115305085440.

The previous prime is 213374494733. The next prime is 213374494777. The reversal of 213374494773 is 377494473312.

213374494773 is a `hidden beast` number, since 2 + 13 + 3 + 74 + 494 + 7 + 73 = 666.

It is not a de Polignac number, because 213374494773 - 2¹³ = 213374486581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213374494777) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3304398 + ... + 3368351.

It is an arithmetic number, because the mean of its divisors is an integer number (7807117500).

Almost surely, 2^213374494773 is an apocalyptic number.

It is an amenable number.

213374494773 is a deficient number, since it is larger than the sum of its proper divisors (161367145227).

213374494773 is a wasteful number, since it uses less digits than its factorization.

213374494773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6672802 (or 6672799 counting only the distinct ones).

The product of its digits is 10668672, while the sum is 54.

The spelling of 213374494773 in words is "two hundred thirteen billion, three hundred seventy-four million, four hundred ninety-four thousand, seven hundred seventy-three".