38128429203 has 4 divisors (see below), whose sum is σ = 50837905608.
Its totient is φ = 25418952800.
The previous prime is 38128429187. The next prime is 38128429259. The reversal of 38128429203 is 30292482183.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 38128429203 - 24 = 38128429187 is a prime.
It is a super-2 number, since 2×381284292032 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (38128429903) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6354738198 + ... + 6354738203.
It is an arithmetic number, because the mean of its divisors is an integer number (12709476402).
Almost surely, 238128429203 is an apocalyptic number.
38128429203 is a deficient number, since it is larger than the sum of its proper divisors (12709476405).
38128429203 is a wasteful number, since it uses less digits than its factorization.
38128429203 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12709476404.
The product of its (nonzero) digits is 165888, while the sum is 42.
The spelling of 38128429203 in words is "thirty-eight billion, one hundred twenty-eight million, four hundred twenty-nine thousand, two hundred three".