38128429205 has 16 divisors (see below), whose sum is σ = 46022047344. Its totient is φ = 30324234240.

The previous prime is 38128429187. The next prime is 38128429259. The reversal of 38128429205 is 50292482183.

It can be written as a sum of positive squares in 8 ways, for example, as 2755095121 + 35373334084 = 52489^2 + 188078^2 .

It is not a de Polignac number, because 38128429205 - 2¹⁸ = 38128167061 is a prime.

It is a super-2 number, since 2×38128429205² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4061477 + ... + 4070853.

It is an arithmetic number, because the mean of its divisors is an integer number (2876377959).

Almost surely, 2^38128429205 is an apocalyptic number.

It is an amenable number.

38128429205 is a deficient number, since it is larger than the sum of its proper divisors (7893618139).

38128429205 is a wasteful number, since it uses less digits than its factorization.

38128429205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14056.

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 38128429205 in words is "thirty-eight billion, one hundred twenty-eight million, four hundred twenty-nine thousand, two hundred five".