38805659747 has 4 divisors (see below), whose sum is σ = 38808734976. Its totient is φ = 38802584520.

The previous prime is 38805659707. The next prime is 38805659749. The reversal of 38805659747 is 74795650883.

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 38805659747 - 2²⁸ = 38537224291 is a prime.

It is a super-2 number, since 2×38805659747² (a number of 22 digits) contains 22 as substring.

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 38805659747.

It is not an unprimeable number, because it can be changed into a prime (38805659749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1518608 + ... + 1543949.

It is an arithmetic number, because the mean of its divisors is an integer number (9702183744).

Almost surely, 2^38805659747 is an apocalyptic number.

38805659747 is a deficient number, since it is larger than the sum of its proper divisors (3075229).

38805659747 is a wasteful number, since it uses less digits than its factorization.

38805659747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3075228.

The product of its (nonzero) digits is 50803200, while the sum is 62.

The spelling of 38805659747 in words is "thirty-eight billion, eight hundred five million, six hundred fifty-nine thousand, seven hundred forty-seven".