38243264187 has 4 divisors (see below), whose sum is σ = 50991018920. Its totient is φ = 25495509456.

The previous prime is 38243264179. The next prime is 38243264273. The reversal of 38243264187 is 78146234283.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 38243264187 - 2³ = 38243264179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38243264117) 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, 6373877362 + ... + 6373877367.

It is an arithmetic number, because the mean of its divisors is an integer number (12747754730).

Almost surely, 2^38243264187 is an apocalyptic number.

38243264187 is a deficient number, since it is larger than the sum of its proper divisors (12747754733).

38243264187 is a wasteful number, since it uses less digits than its factorization.

38243264187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12747754732.

The product of its digits is 1548288, while the sum is 48.

The spelling of 38243264187 in words is "thirty-eight billion, two hundred forty-three million, two hundred sixty-four thousand, one hundred eighty-seven".