84002221648 has 10 divisors (see below), whose sum is σ = 162754304474. Its totient is φ = 42001110816.

The previous prime is 84002221627. The next prime is 84002221733. The reversal of 84002221648 is 84612220048.

It can be written as a sum of positive squares in only one way, i.e., 64978088464 + 19024133184 = 254908^2 + 137928^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2625069411 + ... + 2625069442.

Almost surely, 2^84002221648 is an apocalyptic number.

It is an amenable number.

84002221648 is a deficient number, since it is larger than the sum of its proper divisors (78752082826).

84002221648 is a wasteful number, since it uses less digits than its factorization.

84002221648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5250138861 (or 5250138855 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 37.

The spelling of 84002221648 in words is "eighty-four billion, two million, two hundred twenty-one thousand, six hundred forty-eight".