213604691396 has 24 divisors (see below), whose sum is σ = 394076476416. Its totient is φ = 101158018560.

The previous prime is 213604691383. The next prime is 213604691473. The reversal of 213604691396 is 693196406312.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18319901 + ... + 18331556.

It is an arithmetic number, because the mean of its divisors is an integer number (16419853184).

Almost surely, 2^213604691396 is an apocalyptic number.

It is an amenable number.

213604691396 is a deficient number, since it is larger than the sum of its proper divisors (180471785020).

213604691396 is a wasteful number, since it uses less digits than its factorization.

213604691396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36651539 (or 36651537 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 50.

The spelling of 213604691396 in words is "two hundred thirteen billion, six hundred four million, six hundred ninety-one thousand, three hundred ninety-six".