38573037565 has 4 divisors (see below), whose sum is σ = 46287645084. Its totient is φ = 30858430048.

The previous prime is 38573037551. The next prime is 38573037577. The reversal of 38573037565 is 56573037583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56573037583 = 157 ⋅360337819.

It can be written as a sum of positive squares in 2 ways, for example, as 25267645764 + 13305391801 = 158958^2 + 115349^2 .

It is a cyclic number.

It is not a de Polignac number, because 38573037565 - 2¹⁵ = 38573004797 is a prime.

It is a super-2 number, since 2×38573037565² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3857303752 + ... + 3857303761.

It is an arithmetic number, because the mean of its divisors is an integer number (11571911271).

Almost surely, 2^38573037565 is an apocalyptic number.

It is an amenable number.

38573037565 is a deficient number, since it is larger than the sum of its proper divisors (7714607519).

38573037565 is an equidigital number, since it uses as much as digits as its factorization.

38573037565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7714607518.

The product of its (nonzero) digits is 7938000, while the sum is 52.

The spelling of 38573037565 in words is "thirty-eight billion, five hundred seventy-three million, thirty-seven thousand, five hundred sixty-five".