38128429321 has 2 divisors, whose sum is σ = 38128429322. Its totient is φ = 38128429320.

The previous prime is 38128429259. The next prime is 38128429349. The reversal of 38128429321 is 12392482183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37824415225 + 304014096 = 194485^2 + 17436^2 .

It is a cyclic number.

It is not a de Polignac number, because 38128429321 - 2¹³ = 38128421129 is a prime.

It is not a weakly prime, because it can be changed into another prime (38128429621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19064214660 + 19064214661.

It is an arithmetic number, because the mean of its divisors is an integer number (19064214661).

Almost surely, 2^38128429321 is an apocalyptic number.

It is an amenable number.

38128429321 is a deficient number, since it is larger than the sum of its proper divisors (1).

38128429321 is an equidigital number, since it uses as much as digits as its factorization.

38128429321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 43.

The spelling of 38128429321 in words is "thirty-eight billion, one hundred twenty-eight million, four hundred twenty-nine thousand, three hundred twenty-one".