215326003738 has 16 divisors (see below), whose sum is σ = 343222988904. Its totient is φ = 100964067840.

The previous prime is 215326003733. The next prime is 215326003741. The reversal of 215326003738 is 837300623512.

215326003738 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 209665999449 + 5660004289 = 457893^2 + 75233^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 215326003738.

It is not an unprimeable number, because it can be changed into a prime (215326003733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11422203 + ... + 11441038.

Almost surely, 2^215326003738 is an apocalyptic number.

215326003738 is a deficient number, since it is larger than the sum of its proper divisors (127896985166).

215326003738 is a wasteful number, since it uses less digits than its factorization.

215326003738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22863537.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 215326003738 in words is "two hundred fifteen billion, three hundred twenty-six million, three thousand, seven hundred thirty-eight".