15222867863 has 4 divisors (see below), whose sum is σ = 17397563280. Its totient is φ = 13048172448.

The previous prime is 15222867841. The next prime is 15222867899. The reversal of 15222867863 is 36876822251.

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 15222867863 - 2¹⁰ = 15222866839 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 (15222863863) 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 3 ways as a sum of consecutive naturals, for example, 1087347698 + ... + 1087347711.

It is an arithmetic number, because the mean of its divisors is an integer number (4349390820).

Almost surely, 2^15222867863 is an apocalyptic number.

15222867863 is a deficient number, since it is larger than the sum of its proper divisors (2174695417).

15222867863 is an equidigital number, since it uses as much as digits as its factorization.

15222867863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174695416.

The product of its digits is 1935360, while the sum is 50.

The spelling of 15222867863 in words is "fifteen billion, two hundred twenty-two million, eight hundred sixty-seven thousand, eight hundred sixty-three".