38478643193 has 8 divisors (see below), whose sum is σ = 40551336000. Its totient is φ = 36410700528.

The previous prime is 38478643163. The next prime is 38478643199. The reversal of 38478643193 is 39134687483.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38478643193 - 2⁶ = 38478643129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38478643199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1170893 + ... + 1203306.

It is an arithmetic number, because the mean of its divisors is an integer number (5068917000).

Almost surely, 2^38478643193 is an apocalyptic number.

It is an amenable number.

38478643193 is a deficient number, since it is larger than the sum of its proper divisors (2072692807).

38478643193 is a wasteful number, since it uses less digits than its factorization.

38478643193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375071.

The product of its digits is 10450944, while the sum is 56.

The spelling of 38478643193 in words is "thirty-eight billion, four hundred seventy-eight million, six hundred forty-three thousand, one hundred ninety-three".