84842284644 has 36 divisors (see below), whose sum is σ = 230959553916. Its totient is φ = 26105318208.

The previous prime is 84842284477. The next prime is 84842284651. The reversal of 84842284644 is 44648224848.

84842284644 is a `hidden beast` number, since 8 + 484 + 22 + 84 + 64 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 54691435044 + 30150849600 = 233862^2 + 173640^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×84842284644² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90642999 + ... + 90643934.

Almost surely, 2^84842284644 is an apocalyptic number.

It is an amenable number.

84842284644 is an abundant number, since it is smaller than the sum of its proper divisors (146117269272).

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

84842284644 is a wasteful number, since it uses less digits than its factorization.

84842284644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181286956 (or 181286951 counting only the distinct ones).

The product of its digits is 12582912, while the sum is 54.

The spelling of 84842284644 in words is "eighty-four billion, eight hundred forty-two million, two hundred eighty-four thousand, six hundred forty-four".