215352365424263 has 4 divisors (see below), whose sum is σ = 215383928140368. Its totient is φ = 215320802708160.

The previous prime is 215352365424257. The next prime is 215352365424277. The reversal of 215352365424263 is 362424563253512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 215352365424263 - 2¹⁶ = 215352365358727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215352365454263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15781347818 + ... + 15781361463.

It is an arithmetic number, because the mean of its divisors is an integer number (53845982035092).

Almost surely, 2^{215352365424263} is an apocalyptic number.

215352365424263 is a deficient number, since it is larger than the sum of its proper divisors (31562716105).

215352365424263 is an equidigital number, since it uses as much as digits as its factorization.

215352365424263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31562716104.

The product of its digits is 31104000, while the sum is 53.

The spelling of 215352365424263 in words is "two hundred fifteen trillion, three hundred fifty-two billion, three hundred sixty-five million, four hundred twenty-four thousand, two hundred sixty-three".