38981648815 has 8 divisors (see below), whose sum is σ = 47020352688. Its totient is φ = 31023736320.

The previous prime is 38981648809. The next prime is 38981648837. The reversal of 38981648815 is 51884618983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38981648815 - 2⁷ = 38981648687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20196781 + ... + 20198710.

It is an arithmetic number, because the mean of its divisors is an integer number (5877544086).

Almost surely, 2^38981648815 is an apocalyptic number.

38981648815 is a deficient number, since it is larger than the sum of its proper divisors (8038703873).

38981648815 is a wasteful number, since it uses less digits than its factorization.

38981648815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40395689.

The product of its digits is 13271040, while the sum is 61.

The spelling of 38981648815 in words is "thirty-eight billion, nine hundred eighty-one million, six hundred forty-eight thousand, eight hundred fifteen".