38768444747 has 4 divisors (see below), whose sum is σ = 38771734536. Its totient is φ = 38765154960.

The previous prime is 38768444647. The next prime is 38768444779. The reversal of 38768444747 is 74744486783.

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 38768444747 - 2¹⁶ = 38768379211 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 38768444747.

It is not an unprimeable number, because it can be changed into a prime (38768444147) 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, 1627154 + ... + 1650807.

It is an arithmetic number, because the mean of its divisors is an integer number (9692933634).

Almost surely, 2^38768444747 is an apocalyptic number.

38768444747 is a deficient number, since it is larger than the sum of its proper divisors (3289789).

38768444747 is a wasteful number, since it uses less digits than its factorization.

38768444747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3289788.

The product of its digits is 101154816, while the sum is 62.

The spelling of 38768444747 in words is "thirty-eight billion, seven hundred sixty-eight million, four hundred forty-four thousand, seven hundred forty-seven".