38442065672 has 8 divisors (see below), whose sum is σ = 72078873150. Its totient is φ = 19221032832.

The previous prime is 38442065671. The next prime is 38442065693. The reversal of 38442065672 is 27656024483.

38442065672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 38434034116 + 8031556 = 196046^2 + 2834^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×38442065672³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (38442065671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2402629097 + ... + 2402629112.

Almost surely, 2^38442065672 is an apocalyptic number.

It is an amenable number.

38442065672 is a deficient number, since it is larger than the sum of its proper divisors (33636807478).

38442065672 is a wasteful number, since it uses less digits than its factorization.

38442065672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4805258215 (or 4805258211 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 47.

The spelling of 38442065672 in words is "thirty-eight billion, four hundred forty-two million, sixty-five thousand, six hundred seventy-two".