38806665635 has 4 divisors (see below), whose sum is σ = 46567998768. Its totient is φ = 31045332504.

The previous prime is 38806665587. The next prime is 38806665673. The reversal of 38806665635 is 53656660883.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38806665635 - 2⁶ = 38806665571 is a prime.

It is a Duffinian 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, 3880666559 + ... + 3880666568.

It is an arithmetic number, because the mean of its divisors is an integer number (11641999692).

Almost surely, 2^38806665635 is an apocalyptic number.

38806665635 is a deficient number, since it is larger than the sum of its proper divisors (7761333133).

38806665635 is an equidigital number, since it uses as much as digits as its factorization.

38806665635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7761333132.

The product of its (nonzero) digits is 18662400, while the sum is 56.

The spelling of 38806665635 in words is "thirty-eight billion, eight hundred six million, six hundred sixty-five thousand, six hundred thirty-five".