38884638797 has 4 divisors (see below), whose sum is σ = 40138982016. Its totient is φ = 37630295580.

The previous prime is 38884638769. The next prime is 38884638811. The reversal of 38884638797 is 79783648883.

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 38884638797 - 2¹⁰ = 38884637773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38884638797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38884637797) 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, 627171563 + ... + 627171624.

It is an arithmetic number, because the mean of its divisors is an integer number (10034745504).

Almost surely, 2^38884638797 is an apocalyptic number.

It is an amenable number.

38884638797 is a deficient number, since it is larger than the sum of its proper divisors (1254343219).

38884638797 is a wasteful number, since it uses less digits than its factorization.

38884638797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254343218.

The product of its digits is 390168576, while the sum is 71.

The spelling of 38884638797 in words is "thirty-eight billion, eight hundred eighty-four million, six hundred thirty-eight thousand, seven hundred ninety-seven".