38428855550173 has 4 divisors (see below), whose sum is σ = 41922387872928. Its totient is φ = 34935323227420.

The previous prime is 38428855550171. The next prime is 38428855550177. The reversal of 38428855550173 is 37105555882483.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 38428855550173 - 2¹ = 38428855550171 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38428855550171) 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, 1746766161361 + ... + 1746766161382.

It is an arithmetic number, because the mean of its divisors is an integer number (10480596968232).

Almost surely, 2^{38428855550173} is an apocalyptic number.

It is an amenable number.

38428855550173 is a deficient number, since it is larger than the sum of its proper divisors (3493532322755).

38428855550173 is a wasteful number, since it uses less digits than its factorization.

38428855550173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493532322754.

The product of its (nonzero) digits is 161280000, while the sum is 64.

The spelling of 38428855550173 in words is "thirty-eight trillion, four hundred twenty-eight billion, eight hundred fifty-five million, five hundred fifty thousand, one hundred seventy-three".