38449973863 has 16 divisors (see below), whose sum is σ = 44311805440. Its totient is φ = 32680954656.

The previous prime is 38449973857. The next prime is 38449973899. The reversal of 38449973863 is 36837994483.

38449973863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-38449973863 is a prime.

It is a super-3 number, since 3×38449973863³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38449973795 and 38449973804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38449973833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 806806 + ... + 853132.

It is an arithmetic number, because the mean of its divisors is an integer number (2769487840).

Almost surely, 2^38449973863 is an apocalyptic number.

38449973863 is a deficient number, since it is larger than the sum of its proper divisors (5861831577).

38449973863 is a wasteful number, since it uses less digits than its factorization.

38449973863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47326.

The product of its digits is 94058496, while the sum is 64.

The spelling of 38449973863 in words is "thirty-eight billion, four hundred forty-nine million, nine hundred seventy-three thousand, eight hundred sixty-three".