38717478435572 has 12 divisors (see below), whose sum is σ = 68036730779556. Its totient is φ = 19278412498560.

The previous prime is 38717478435563. The next prime is 38717478435611. The reversal of 38717478435572 is 27553487471783.

It can be written as a sum of positive squares in 2 ways, for example, as 34028018889316 + 4689459546256 = 5833354^2 + 2165516^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38717478435496 and 38717478435505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20081678723 + ... + 20081680650.

It is an arithmetic number, because the mean of its divisors is an integer number (5669727564963).

Almost surely, 2^{38717478435572} is an apocalyptic number.

It is an amenable number.

38717478435572 is a deficient number, since it is larger than the sum of its proper divisors (29319252343984).

38717478435572 is a wasteful number, since it uses less digits than its factorization.

38717478435572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40163359618 (or 40163359616 counting only the distinct ones).

The product of its digits is 1106380800, while the sum is 71.

The spelling of 38717478435572 in words is "thirty-eight trillion, seven hundred seventeen billion, four hundred seventy-eight million, four hundred thirty-five thousand, five hundred seventy-two".