38129173917927 has 16 divisors (see below), whose sum is σ = 51531506880000. Its totient is φ = 25073758592064.

The previous prime is 38129173917907. The next prime is 38129173917931. The reversal of 38129173917927 is 72971937192183.

It is not a de Polignac number, because 38129173917927 - 2¹⁰ = 38129173916903 is a prime.

It is a super-2 number, since 2×38129173917927² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38129173917907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76435177 + ... + 76932402.

It is an arithmetic number, because the mean of its divisors is an integer number (3220719180000).

Almost surely, 2^{38129173917927} is an apocalyptic number.

38129173917927 is a deficient number, since it is larger than the sum of its proper divisors (13402332962073).

38129173917927 is a wasteful number, since it uses less digits than its factorization.

38129173917927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153368710.

The product of its digits is 72013536, while the sum is 69.

The spelling of 38129173917927 in words is "thirty-eight trillion, one hundred twenty-nine billion, one hundred seventy-three million, nine hundred seventeen thousand, nine hundred twenty-seven".