7144516643 has 16 divisors (see below), whose sum is σ = 7970805216. Its totient is φ = 6349271040.

The previous prime is 7144516633. The next prime is 7144516661. The reversal of 7144516643 is 3466154417.

It is a cyclic number.

It is not a de Polignac number, because 7144516643 - 2¹⁰ = 7144515619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7144516643.

It is not an unprimeable number, because it can be changed into a prime (7144516633) 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, 51371 + ... + 130107.

It is an arithmetic number, because the mean of its divisors is an integer number (498175326).

Almost surely, 2^7144516643 is an apocalyptic number.

7144516643 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

7144516643 is a deficient number, since it is larger than the sum of its proper divisors (826288573).

7144516643 is a wasteful number, since it uses less digits than its factorization.

7144516643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78934.

The product of its digits is 241920, while the sum is 41.

The square root of 7144516643 is about 84525.2426379244. The cubic root of 7144516643 is about 1926.0059187872.

It can be divided in two parts, 71445 and 16643, that added together give a palindrome (88088).

The spelling of 7144516643 in words is "seven billion, one hundred forty-four million, five hundred sixteen thousand, six hundred forty-three".