612718213206 has 48 divisors (see below), whose sum is σ = 1347503540544. Its totient is φ = 185598270000.

The previous prime is 612718213157. The next prime is 612718213207. The reversal of 612718213206 is 602312817216.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612718213207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1670781 + ... + 2004231.

It is an arithmetic number, because the mean of its divisors is an integer number (28072990428).

Almost surely, 2^612718213206 is an apocalyptic number.

612718213206 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

612718213206 is an abundant number, since it is smaller than the sum of its proper divisors (734785327338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612718213206 is a wasteful number, since it uses less digits than its factorization.

612718213206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336009 (or 335998 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 612718213206 in words is "six hundred twelve billion, seven hundred eighteen million, two hundred thirteen thousand, two hundred six".