38535866657 has 4 divisors (see below), whose sum is σ = 38588013360. Its totient is φ = 38483719956.

The previous prime is 38535866653. The next prime is 38535866669. The reversal of 38535866657 is 75666853583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75666853583 = 317 ⋅238696699.

It is a cyclic number.

It is not a de Polignac number, because 38535866657 - 2² = 38535866653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38535866657.

It is not an unprimeable number, because it can be changed into a prime (38535866653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26072243 + ... + 26073720.

It is an arithmetic number, because the mean of its divisors is an integer number (9647003340).

Almost surely, 2^38535866657 is an apocalyptic number.

It is an amenable number.

38535866657 is a deficient number, since it is larger than the sum of its proper divisors (52146703).

38535866657 is an equidigital number, since it uses as much as digits as its factorization.

38535866657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52146702.

The product of its digits is 108864000, while the sum is 62.

The spelling of 38535866657 in words is "thirty-eight billion, five hundred thirty-five million, eight hundred sixty-six thousand, six hundred fifty-seven".