38728364357 has 4 divisors (see below), whose sum is σ = 38731480320. Its totient is φ = 38725248396.

The previous prime is 38728364351. The next prime is 38728364393. The reversal of 38728364357 is 75346382783.

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 a cyclic number.

It is not a de Polignac number, because 38728364357 - 2¹⁶ = 38728298821 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 (38728364351) 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, 1539263 + ... + 1564220.

It is an arithmetic number, because the mean of its divisors is an integer number (9682870080).

Almost surely, 2^38728364357 is an apocalyptic number.

It is an amenable number.

38728364357 is a deficient number, since it is larger than the sum of its proper divisors (3115963).

38728364357 is a wasteful number, since it uses less digits than its factorization.

38728364357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115962.

The product of its digits is 20321280, while the sum is 56.

The spelling of 38728364357 in words is "thirty-eight billion, seven hundred twenty-eight million, three hundred sixty-four thousand, three hundred fifty-seven".