215791228246 has 32 divisors (see below), whose sum is σ = 364240478880. Its totient is φ = 95019091200.

The previous prime is 215791228243. The next prime is 215791228297. The reversal of 215791228246 is 642822197512.

215791228246 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 215791228246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215791228243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 392415 + ... + 765226.

It is an arithmetic number, because the mean of its divisors is an integer number (11382514965).

Almost surely, 2^215791228246 is an apocalyptic number.

215791228246 is a deficient number, since it is larger than the sum of its proper divisors (148449250634).

215791228246 is a wasteful number, since it uses less digits than its factorization.

215791228246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157920.

The product of its digits is 967680, while the sum is 49.

The spelling of 215791228246 in words is "two hundred fifteen billion, seven hundred ninety-one million, two hundred twenty-eight thousand, two hundred forty-six".