38539971918601 has 8 divisors (see below), whose sum is σ = 38594897719560. Its totient is φ = 38485082654208.

The previous prime is 38539971918589. The next prime is 38539971918653. The reversal of 38539971918601 is 10681917993583.

It can be written as a sum of positive squares in 4 ways, for example, as 574410894201 + 37965561024400 = 757899^2 + 6161620^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38539971918601 - 2¹¹ = 38539971916553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38539971918001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7022626 + ... + 11242651.

It is an arithmetic number, because the mean of its divisors is an integer number (4824362214945).

Almost surely, 2^{38539971918601} is an apocalyptic number.

It is an amenable number.

38539971918601 is a deficient number, since it is larger than the sum of its proper divisors (54925800959).

38539971918601 is a wasteful number, since it uses less digits than its factorization.

38539971918601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18268283.

The product of its (nonzero) digits is 88179840, while the sum is 70.

The spelling of 38539971918601 in words is "thirty-eight trillion, five hundred thirty-nine billion, nine hundred seventy-one million, nine hundred eighteen thousand, six hundred one".