38539497809268 has 36 divisors (see below), whose sum is σ = 97588123765860. Its totient is φ = 12824234966016.

The previous prime is 38539497809261. The next prime is 38539497809269. The reversal of 38539497809268 is 86290879493583.

38539497809268 is a `hidden beast` number, since 3 + 8 + 5 + 39 + 497 + 8 + 0 + 92 + 6 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 37603116451044 + 936381358224 = 6132138^2 + 967668^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38539497809261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 927658263 + ... + 927699806.

Almost surely, 2^{38539497809268} is an apocalyptic number.

It is an amenable number.

38539497809268 is an abundant number, since it is smaller than the sum of its proper divisors (59048625956592).

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

38539497809268 is a wasteful number, since it uses less digits than its factorization.

38539497809268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855358656 (or 1855358651 counting only the distinct ones).

The product of its (nonzero) digits is 5643509760, while the sum is 81.

The spelling of 38539497809268 in words is "thirty-eight trillion, five hundred thirty-nine billion, four hundred ninety-seven million, eight hundred nine thousand, two hundred sixty-eight".