38442633469 has 2 divisors, whose sum is σ = 38442633470. Its totient is φ = 38442633468.

The previous prime is 38442633461. The next prime is 38442633547. The reversal of 38442633469 is 96433624483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38440307844 + 2325625 = 196062^2 + 1525^2 .

It is a cyclic number.

It is not a de Polignac number, because 38442633469 - 2³ = 38442633461 is a prime.

It is a super-2 number, since 2×38442633469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38442633461) 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 as a sum of consecutive naturals, namely, 19221316734 + 19221316735.

It is an arithmetic number, because the mean of its divisors is an integer number (19221316735).

Almost surely, 2^38442633469 is an apocalyptic number.

It is an amenable number.

38442633469 is a deficient number, since it is larger than the sum of its proper divisors (1).

38442633469 is an equidigital number, since it uses as much as digits as its factorization.

38442633469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8957952, while the sum is 52.

The spelling of 38442633469 in words is "thirty-eight billion, four hundred forty-two million, six hundred thirty-three thousand, four hundred sixty-nine".