38671866685 has 8 divisors (see below), whose sum is σ = 46479787776. Its totient is φ = 30888461520.

The previous prime is 38671866637. The next prime is 38671866689. The reversal of 38671866685 is 58666817683.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38671866685 - 2⁹ = 38671866173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38671866689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6125509 + ... + 6131818.

It is an arithmetic number, because the mean of its divisors is an integer number (5809973472).

Almost surely, 2^38671866685 is an apocalyptic number.

It is an amenable number.

38671866685 is a deficient number, since it is larger than the sum of its proper divisors (7807921091).

38671866685 is a wasteful number, since it uses less digits than its factorization.

38671866685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12257963.

The product of its digits is 69672960, while the sum is 64.

The spelling of 38671866685 in words is "thirty-eight billion, six hundred seventy-one million, eight hundred sixty-six thousand, six hundred eighty-five".