7223421742565 has 16 divisors (see below), whose sum is σ = 9963669437568. Its totient is φ = 4924572242496.

The previous prime is 7223421742561. The next prime is 7223421742583. The reversal of 7223421742565 is 5652471243227.

It is a cyclic number.

It is not a de Polignac number, because 7223421742565 - 2² = 7223421742561 is a prime.

It is a super-2 number, since 2×7223421742565² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7223421742561) 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, 596477987 + ... + 596490096.

It is an arithmetic number, because the mean of its divisors is an integer number (622729339848).

Almost surely, 2^{7223421742565} is an apocalyptic number.

It is an amenable number.

7223421742565 is a deficient number, since it is larger than the sum of its proper divisors (2740247695003).

7223421742565 is a wasteful number, since it uses less digits than its factorization.

7223421742565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192968268.

The product of its digits is 5644800, while the sum is 50.

The spelling of 7223421742565 in words is "seven trillion, two hundred twenty-three billion, four hundred twenty-one million, seven hundred forty-two thousand, five hundred sixty-five".