38206866651 has 4 divisors (see below), whose sum is σ = 50942488872. Its totient is φ = 25471244432.

The previous prime is 38206866619. The next prime is 38206866689. The reversal of 38206866651 is 15666860283.

38206866651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 38206866651 - 2⁵ = 38206866619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38206866594 and 38206866603.

It is not an unprimeable number, because it can be changed into a prime (38206866601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6367811106 + ... + 6367811111.

It is an arithmetic number, because the mean of its divisors is an integer number (12735622218).

Almost surely, 2^38206866651 is an apocalyptic number.

38206866651 is a deficient number, since it is larger than the sum of its proper divisors (12735622221).

38206866651 is a wasteful number, since it uses less digits than its factorization.

38206866651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12735622220.

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 38206866651 in words is "thirty-eight billion, two hundred six million, eight hundred sixty-six thousand, six hundred fifty-one".