7326563641 has 4 divisors (see below), whose sum is σ = 7337682000. Its totient is φ = 7315445284.

The previous prime is 7326563611. The next prime is 7326563663. The reversal of 7326563641 is 1463656237.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1463656237 = 1559 ⋅938843.

It is a cyclic number.

It is not a de Polignac number, because 7326563641 - 2¹³ = 7326555449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7326563611) 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, 5558191 + ... + 5559508.

It is an arithmetic number, because the mean of its divisors is an integer number (1834420500).

Almost surely, 2^7326563641 is an apocalyptic number.

It is an amenable number.

7326563641 is a deficient number, since it is larger than the sum of its proper divisors (11118359).

7326563641 is a wasteful number, since it uses less digits than its factorization.

7326563641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11118358.

The product of its digits is 544320, while the sum is 43.

The square root of 7326563641 is about 85595.3482439320. The cubic root of 7326563641 is about 1942.2275437870.

The spelling of 7326563641 in words is "seven billion, three hundred twenty-six million, five hundred sixty-three thousand, six hundred forty-one".