38726257871172 has 12 divisors (see below), whose sum is σ = 90361268366096. Its totient is φ = 12908752623720.

The previous prime is 38726257871159. The next prime is 38726257871179. The reversal of 38726257871172 is 27117875262783.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×38726257871172³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (38726257871179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1613594077954 + ... + 1613594077977.

Almost surely, 2^{38726257871172} is an apocalyptic number.

It is an amenable number.

38726257871172 is an abundant number, since it is smaller than the sum of its proper divisors (51635010494924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38726257871172 is a wasteful number, since it uses less digits than its factorization.

38726257871172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3227188155938 (or 3227188155936 counting only the distinct ones).

The product of its digits is 110638080, while the sum is 66.

The spelling of 38726257871172 in words is "thirty-eight trillion, seven hundred twenty-six billion, two hundred fifty-seven million, eight hundred seventy-one thousand, one hundred seventy-two".