38423459172 has 72 divisors (see below), whose sum is σ = 107888578560. Its totient is φ = 10599570240.

The previous prime is 38423459159. The next prime is 38423459183. The reversal of 38423459172 is 27195432483.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1109604 + ... + 1143707.

It is an arithmetic number, because the mean of its divisors is an integer number (1498452480).

Almost surely, 2^38423459172 is an apocalyptic number.

It is an amenable number.

38423459172 is an abundant number, since it is smaller than the sum of its proper divisors (69465119388).

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

38423459172 is a wasteful number, since it uses less digits than its factorization.

38423459172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2253361 (or 2253352 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The spelling of 38423459172 in words is "thirty-eight billion, four hundred twenty-three million, four hundred fifty-nine thousand, one hundred seventy-two".