83886421544 has 16 divisors (see below), whose sum is σ = 157514673120. Its totient is φ = 41882508720.

The previous prime is 83886421543. The next prime is 83886421667. The reversal of 83886421544 is 44512468838.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (83886421543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7581884 + ... + 7592939.

It is an arithmetic number, because the mean of its divisors is an integer number (9844667070).

Almost surely, 2^83886421544 is an apocalyptic number.

It is an amenable number.

83886421544 is a deficient number, since it is larger than the sum of its proper divisors (73628251576).

83886421544 is a wasteful number, since it uses less digits than its factorization.

83886421544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15175520 (or 15175516 counting only the distinct ones).

The product of its digits is 5898240, while the sum is 53.

The spelling of 83886421544 in words is "eighty-three billion, eight hundred eighty-six million, four hundred twenty-one thousand, five hundred forty-four".