38821542816 has 72 divisors (see below), whose sum is σ = 118544368320. Its totient is φ = 11091868032.

The previous prime is 38821542797. The next prime is 38821542821. The reversal of 38821542816 is 61824512883.

It is a super-2 number, since 2×38821542816² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4121736 + ... + 4131143.

It is an arithmetic number, because the mean of its divisors is an integer number (1646449560).

Almost surely, 2^38821542816 is an apocalyptic number.

It is an amenable number.

38821542816 is an abundant number, since it is smaller than the sum of its proper divisors (79722825504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38821542816 is a wasteful number, since it uses less digits than its factorization.

38821542816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8252906 (or 8252891 counting only the distinct ones).

The product of its digits is 737280, while the sum is 48.

The spelling of 38821542816 in words is "thirty-eight billion, eight hundred twenty-one million, five hundred forty-two thousand, eight hundred sixteen".