38624421733 has 2 divisors, whose sum is σ = 38624421734. Its totient is φ = 38624421732.

The previous prime is 38624421683. The next prime is 38624421791. The reversal of 38624421733 is 33712442683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38503465729 + 120956004 = 196223^2 + 10998^2 .

It is an emirp because it is prime and its reverse (33712442683) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38624421733 - 2²¹ = 38622324581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38624421733.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38624421793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19312210866 + 19312210867.

It is an arithmetic number, because the mean of its divisors is an integer number (19312210867).

Almost surely, 2^38624421733 is an apocalyptic number.

It is an amenable number.

38624421733 is a deficient number, since it is larger than the sum of its proper divisors (1).

38624421733 is an equidigital number, since it uses as much as digits as its factorization.

38624421733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 43.

The spelling of 38624421733 in words is "thirty-eight billion, six hundred twenty-four million, four hundred twenty-one thousand, seven hundred thirty-three".