47538890393 has 4 divisors (see below), whose sum is σ = 47539413120. Its totient is φ = 47538367668.

The previous prime is 47538890363. The next prime is 47538890419. The reversal of 47538890393 is 39309883574.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 47538890393 - 2²⁰ = 47537841817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47538890303) 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, 85505 + ... + 319982.

It is an arithmetic number, because the mean of its divisors is an integer number (11884853280).

Almost surely, 2^47538890393 is an apocalyptic number.

It is an amenable number.

47538890393 is a deficient number, since it is larger than the sum of its proper divisors (522727).

47538890393 is a wasteful number, since it uses less digits than its factorization.

47538890393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522726.

The product of its (nonzero) digits is 19595520, while the sum is 59.

The spelling of 47538890393 in words is "forty-seven billion, five hundred thirty-eight million, eight hundred ninety thousand, three hundred ninety-three".