213353517730 has 32 divisors (see below), whose sum is σ = 399167745984. Its totient is φ = 82034450496.

The previous prime is 213353517721. The next prime is 213353517743. The reversal of 213353517730 is 37715353312.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3442972 + ... + 3504391.

It is an arithmetic number, because the mean of its divisors is an integer number (12473992062).

Almost surely, 2^213353517730 is an apocalyptic number.

213353517730 is a deficient number, since it is larger than the sum of its proper divisors (185814228254).

213353517730 is a wasteful number, since it uses less digits than its factorization.

213353517730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6947490.

The product of its (nonzero) digits is 198450, while the sum is 40.

The spelling of 213353517730 in words is "two hundred thirteen billion, three hundred fifty-three million, five hundred seventeen thousand, seven hundred thirty".