7222613643 has 16 divisors (see below), whose sum is σ = 12228764160. Its totient is φ = 4127207688.

The previous prime is 7222613641. The next prime is 7222613731. The reversal of 7222613643 is 3463162227.

7222613643 is a `hidden beast` number, since 7 + 2 + 2 + 2 + 6 + 1 + 3 + 643 = 666.

It is not a de Polignac number, because 7222613643 - 2¹ = 7222613641 is a prime.

It is a super-2 number, since 2×7222613643² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7222613598 and 7222613607.

It is not an unprimeable number, because it can be changed into a prime (7222613641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19107255 + ... + 19107632.

It is an arithmetic number, because the mean of its divisors is an integer number (764297760).

Almost surely, 2^7222613643 is an apocalyptic number.

7222613643 is a deficient number, since it is larger than the sum of its proper divisors (5006150517).

7222613643 is a wasteful number, since it uses less digits than its factorization.

7222613643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38214903 (or 38214897 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 7222613643 is about 84985.9614465825. The cubic root of 7222613643 is about 1932.9982520117.

It can be divided in two parts, 722261 and 3643, that added together give a square (725904 = 852²).

The spelling of 7222613643 in words is "seven billion, two hundred twenty-two million, six hundred thirteen thousand, six hundred forty-three".