38129173917928 has 32 divisors (see below), whose sum is σ = 71522942088960. Its totient is φ = 19056390534720.

The previous prime is 38129173917907. The next prime is 38129173917931. The reversal of 38129173917928 is 82971937192183.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290081950 + ... + 290213362.

It is an arithmetic number, because the mean of its divisors is an integer number (2235091940280).

Almost surely, 2^{38129173917928} is an apocalyptic number.

It is an amenable number.

38129173917928 is a deficient number, since it is larger than the sum of its proper divisors (33393768171032).

38129173917928 is a wasteful number, since it uses less digits than its factorization.

38129173917928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146737 (or 146733 counting only the distinct ones).

The product of its digits is 82301184, while the sum is 70.

The spelling of 38129173917928 in words is "thirty-eight trillion, one hundred twenty-nine billion, one hundred seventy-three million, nine hundred seventeen thousand, nine hundred twenty-eight".