84636408900 has 72 divisors (see below), whose sum is σ = 246249551520. Its totient is φ = 22443607040.

The previous prime is 84636408863. The next prime is 84636408917. The reversal of 84636408900 is 980463648.

It is a super-2 number, since 2×84636408900² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84636408900.

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 23 ways as a sum of consecutive naturals, for example, 734349 + ... + 841748.

It is an arithmetic number, because the mean of its divisors is an integer number (3420132660).

Almost surely, 2^84636408900 is an apocalyptic number.

It is an amenable number.

84636408900 is an abundant number, since it is smaller than the sum of its proper divisors (161613142620).

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

84636408900 is a wasteful number, since it uses less digits than its factorization.

84636408900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576293 (or 1576286 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 84636408900 in words is "eighty-four billion, six hundred thirty-six million, four hundred eight thousand, nine hundred".