38128429903 has 2 divisors, whose sum is σ = 38128429904. Its totient is φ = 38128429902.

The previous prime is 38128429901. The next prime is 38128429919. The reversal of 38128429903 is 30992482183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38128429903 - 2¹ = 38128429901 is a prime.

Together with 38128429901, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38128429901) 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, 19064214951 + 19064214952.

It is an arithmetic number, because the mean of its divisors is an integer number (19064214952).

Almost surely, 2^38128429903 is an apocalyptic number.

38128429903 is a deficient number, since it is larger than the sum of its proper divisors (1).

38128429903 is an equidigital number, since it uses as much as digits as its factorization.

38128429903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 38128429903 in words is "thirty-eight billion, one hundred twenty-eight million, four hundred twenty-nine thousand, nine hundred three".