38994449983 has 4 divisors (see below), whose sum is σ = 39396454720. Its totient is φ = 38592445248.

The previous prime is 38994449981. The next prime is 38994449999.

38994449983 is nontrivially palindromic in base 10.

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 38994449983 - 2¹ = 38994449981 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 (38994449981) 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, 201002223 + ... + 201002416.

It is an arithmetic number, because the mean of its divisors is an integer number (9849113680).

Almost surely, 2^38994449983 is an apocalyptic number.

38994449983 is a deficient number, since it is larger than the sum of its proper divisors (402004737).

38994449983 is an equidigital number, since it uses as much as digits as its factorization.

38994449983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402004736.

The product of its digits is 241864704, while the sum is 70.

The spelling of 38994449983 in words is "thirty-eight billion, nine hundred ninety-four million, four hundred forty-nine thousand, nine hundred eighty-three".