38047685757 has 4 divisors (see below), whose sum is σ = 50730247680. Its totient is φ = 25365123836.

The previous prime is 38047685707. The next prime is 38047685773. The reversal of 38047685757 is 75758674083.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 38047685757 - 2¹⁰ = 38047684733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38047685757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38047685707) 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, 6341280957 + ... + 6341280962.

It is an arithmetic number, because the mean of its divisors is an integer number (12682561920).

Almost surely, 2^38047685757 is an apocalyptic number.

It is an amenable number.

38047685757 is a deficient number, since it is larger than the sum of its proper divisors (12682561923).

38047685757 is a wasteful number, since it uses less digits than its factorization.

38047685757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12682561922.

The product of its (nonzero) digits is 39513600, while the sum is 60.

The spelling of 38047685757 in words is "thirty-eight billion, forty-seven million, six hundred eighty-five thousand, seven hundred fifty-seven".