84887639364 has 96 divisors (see below), whose sum is σ = 224403734016. Its totient is φ = 24750190080.

The previous prime is 84887639359. The next prime is 84887639381. The reversal of 84887639364 is 46393678848.

It is a super-2 number, since 2×84887639364² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 84887639295 and 84887639304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268684 + ... + 491900.

It is an arithmetic number, because the mean of its divisors is an integer number (2337538896).

Almost surely, 2^84887639364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84887639364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112201867008).

84887639364 is an abundant number, since it is smaller than the sum of its proper divisors (139516094652).

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

84887639364 is a wasteful number, since it uses less digits than its factorization.

84887639364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223345 (or 223343 counting only the distinct ones).

The product of its digits is 167215104, while the sum is 66.

The spelling of 84887639364 in words is "eighty-four billion, eight hundred eighty-seven million, six hundred thirty-nine thousand, three hundred sixty-four".