7338967332581 has 2 divisors, whose sum is σ = 7338967332582. Its totient is φ = 7338967332580.

The previous prime is 7338967332559. The next prime is 7338967332617. The reversal of 7338967332581 is 1852337698337.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7085530601956 + 253436730625 = 2661866^2 + 503425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7338967332581 is a prime.

It is a super-2 number, since 2×7338967332581² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7338967332481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3669483666290 + 3669483666291.

It is an arithmetic number, because the mean of its divisors is an integer number (3669483666291).

Almost surely, 2^{7338967332581} is an apocalyptic number.

It is an amenable number.

7338967332581 is a deficient number, since it is larger than the sum of its proper divisors (1).

7338967332581 is an equidigital number, since it uses as much as digits as its factorization.

7338967332581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 137168640, while the sum is 65.

The spelling of 7338967332581 in words is "seven trillion, three hundred thirty-eight billion, nine hundred sixty-seven million, three hundred thirty-two thousand, five hundred eighty-one".