84400844488 has 8 divisors (see below), whose sum is σ = 158251583430. Its totient is φ = 42200422240.

The previous prime is 84400844477. The next prime is 84400844501. The reversal of 84400844488 is 88444800448.

It can be written as a sum of positive squares in only one way, i.e., 74801156004 + 9599688484 = 273498^2 + 97978^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5275052773 + ... + 5275052788.

Almost surely, 2^84400844488 is an apocalyptic number.

It is an amenable number.

84400844488 is a deficient number, since it is larger than the sum of its proper divisors (73850738942).

84400844488 is a wasteful number, since it uses less digits than its factorization.

84400844488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10550105567 (or 10550105563 counting only the distinct ones).

The product of its (nonzero) digits is 4194304, while the sum is 52.

The spelling of 84400844488 in words is "eighty-four billion, four hundred million, eight hundred forty-four thousand, four hundred eighty-eight".