38648550469 has 2 divisors, whose sum is σ = 38648550470. Its totient is φ = 38648550468.

The previous prime is 38648550439. The next prime is 38648550517. The reversal of 38648550469 is 96405584683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23651364100 + 14997186369 = 153790^2 + 122463^2 .

It is a cyclic number.

It is not a de Polignac number, because 38648550469 - 2¹³ = 38648542277 is a prime.

It is a super-2 number, since 2×38648550469² (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 (38648550419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19324275234 + 19324275235.

It is an arithmetic number, because the mean of its divisors is an integer number (19324275235).

Almost surely, 2^38648550469 is an apocalyptic number.

It is an amenable number.

38648550469 is a deficient number, since it is larger than the sum of its proper divisors (1).

38648550469 is an equidigital number, since it uses as much as digits as its factorization.

38648550469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24883200, while the sum is 58.

The spelling of 38648550469 in words is "thirty-eight billion, six hundred forty-eight million, five hundred fifty thousand, four hundred sixty-nine".