8728222647031 has 4 divisors (see below), whose sum is σ = 8740130182072. Its totient is φ = 8716315111992.

The previous prime is 8728222646977. The next prime is 8728222647041. The reversal of 8728222647031 is 1307462228278.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8728222647031 is a prime.

It is a super-2 number, since 2×8728222647031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8728222647031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8728222647041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5953766421 + ... + 5953767886.

It is an arithmetic number, because the mean of its divisors is an integer number (2185032545518).

Almost surely, 2^{8728222647031} is an apocalyptic number.

8728222647031 is a deficient number, since it is larger than the sum of its proper divisors (11907535041).

8728222647031 is a wasteful number, since it uses less digits than its factorization.

8728222647031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11907535040.

The product of its (nonzero) digits is 3612672, while the sum is 52.

The spelling of 8728222647031 in words is "eight trillion, seven hundred twenty-eight billion, two hundred twenty-two million, six hundred forty-seven thousand, thirty-one".