38983988489 has 4 divisors (see below), whose sum is σ = 38984663556. Its totient is φ = 38983313424.

The previous prime is 38983988479. The next prime is 38983988501. The reversal of 38983988489 is 98488938983.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6292455625 + 32691532864 = 79325^2 + 180808^2 .

It is a cyclic number.

It is not a de Polignac number, because 38983988489 - 2¹² = 38983984393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38983988419) 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, 241874 + ... + 369419.

It is an arithmetic number, because the mean of its divisors is an integer number (9746165889).

Almost surely, 2^38983988489 is an apocalyptic number.

It is an amenable number.

38983988489 is a deficient number, since it is larger than the sum of its proper divisors (675067).

38983988489 is an equidigital number, since it uses as much as digits as its factorization.

38983988489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675066.

The product of its digits is 859963392, while the sum is 77.

The spelling of 38983988489 in words is "thirty-eight billion, nine hundred eighty-three million, nine hundred eighty-eight thousand, four hundred eighty-nine".