84884576640 has 128 divisors (see below), whose sum is σ = 270747208800. Its totient is φ = 22621028352.

The previous prime is 84884576617. The next prime is 84884576677. The reversal of 84884576640 is 4667548848.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3083256 + ... + 3110664.

Almost surely, 2^84884576640 is an apocalyptic number.

84884576640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84884576640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135373604400).

84884576640 is an abundant number, since it is smaller than the sum of its proper divisors (185862632160).

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

84884576640 is a wasteful number, since it uses less digits than its factorization.

84884576640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29044 (or 29032 counting only the distinct ones).

The product of its (nonzero) digits is 41287680, while the sum is 60.

The spelling of 84884576640 in words is "eighty-four billion, eight hundred eighty-four million, five hundred seventy-six thousand, six hundred forty".