38539537979 has 8 divisors (see below), whose sum is σ = 38688021552. Its totient is φ = 38391141600.

The previous prime is 38539537973. The next prime is 38539537991. The reversal of 38539537979 is 97973593583.

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 38539537979 - 2⁴ = 38539537963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38539537973) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 945929 + ... + 985829.

It is an arithmetic number, because the mean of its divisors is an integer number (4836002694).

Almost surely, 2^38539537979 is an apocalyptic number.

38539537979 is a deficient number, since it is larger than the sum of its proper divisors (148483573).

38539537979 is a wasteful number, since it uses less digits than its factorization.

38539537979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43597.

The product of its digits is 192893400, while the sum is 68.

The spelling of 38539537979 in words is "thirty-eight billion, five hundred thirty-nine million, five hundred thirty-seven thousand, nine hundred seventy-nine".