215430363244 has 6 divisors (see below), whose sum is σ = 377003135684. Its totient is φ = 107715181620.

The previous prime is 215430363233. The next prime is 215430363301. The reversal of 215430363244 is 442363034512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26928795402 + ... + 26928795409.

Almost surely, 2^215430363244 is an apocalyptic number.

It is an amenable number.

215430363244 is a deficient number, since it is larger than the sum of its proper divisors (161572772440).

215430363244 is a wasteful number, since it uses less digits than its factorization.

215430363244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53857590815 (or 53857590813 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 37.

Adding to 215430363244 its reverse (442363034512), we get a palindrome (657793397756).

The spelling of 215430363244 in words is "two hundred fifteen billion, four hundred thirty million, three hundred sixty-three thousand, two hundred forty-four".