210993309496 has 24 divisors (see below), whose sum is σ = 412825187880. Its totient is φ = 100906863728.

The previous prime is 210993309481. The next prime is 210993309509. The reversal of 210993309496 is 694903399012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6213861 + ... + 6247723.

It is an arithmetic number, because the mean of its divisors is an integer number (17201049495).

Almost surely, 2^210993309496 is an apocalyptic number.

It is an amenable number.

210993309496 is a deficient number, since it is larger than the sum of its proper divisors (201831878384).

210993309496 is an frugal number, since it uses more digits than its factorization.

210993309496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67755 (or 33888 counting only the distinct ones).

The product of its (nonzero) digits is 2834352, while the sum is 55.

The spelling of 210993309496 in words is "two hundred ten billion, nine hundred ninety-three million, three hundred nine thousand, four hundred ninety-six".