38913205593 has 4 divisors (see below), whose sum is σ = 51884274128. Its totient is φ = 25942137060.

The previous prime is 38913205559. The next prime is 38913205609. The reversal of 38913205593 is 39550231983.

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 not a de Polignac number, because 38913205593 - 2²⁰ = 38912157017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38913205553) 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, 6485534263 + ... + 6485534268.

It is an arithmetic number, because the mean of its divisors is an integer number (12971068532).

Almost surely, 2^38913205593 is an apocalyptic number.

It is an amenable number.

38913205593 is a deficient number, since it is larger than the sum of its proper divisors (12971068535).

38913205593 is a wasteful number, since it uses less digits than its factorization.

38913205593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12971068534.

The product of its (nonzero) digits is 874800, while the sum is 48.

The spelling of 38913205593 in words is "thirty-eight billion, nine hundred thirteen million, two hundred five thousand, five hundred ninety-three".