38355734447 has 4 divisors (see below), whose sum is σ = 38735494296. Its totient is φ = 37975974600.

The previous prime is 38355734401. The next prime is 38355734491. The reversal of 38355734447 is 74443755383.

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

It is a cyclic number.

It is not a de Polignac number, because 38355734447 - 2⁶ = 38355734383 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 (38355734497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189879773 + ... + 189879974.

It is an arithmetic number, because the mean of its divisors is an integer number (9683873574).

Almost surely, 2^38355734447 is an apocalyptic number.

38355734447 is a deficient number, since it is larger than the sum of its proper divisors (379759849).

38355734447 is a wasteful number, since it uses less digits than its factorization.

38355734447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379759848.

The product of its digits is 16934400, while the sum is 53.

The spelling of 38355734447 in words is "thirty-eight billion, three hundred fifty-five million, seven hundred thirty-four thousand, four hundred forty-seven".