38578145583 has 4 divisors (see below), whose sum is σ = 51437527448. Its totient is φ = 25718763720.

The previous prime is 38578145581. The next prime is 38578145629. The reversal of 38578145583 is 38554187583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38554187583 = 3 ⋅12851395861.

It is not a de Polignac number, because 38578145583 - 2¹ = 38578145581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38578145581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6429690928 + ... + 6429690933.

It is an arithmetic number, because the mean of its divisors is an integer number (12859381862).

Almost surely, 2^38578145583 is an apocalyptic number.

38578145583 is a deficient number, since it is larger than the sum of its proper divisors (12859381865).

38578145583 is a wasteful number, since it uses less digits than its factorization.

38578145583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12859381864.

The product of its digits is 16128000, while the sum is 57.

The spelling of 38578145583 in words is "thirty-eight billion, five hundred seventy-eight million, one hundred forty-five thousand, five hundred eighty-three".