87063633408 has 80 divisors (see below), whose sum is σ = 234549429840. Its totient is φ = 28695085056.

The previous prime is 87063633403. The next prime is 87063633409. The reversal of 87063633408 is 80433636078.

It is a super-2 number, since 2×87063633408² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87063633403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181735 + ... + 455142.

It is an arithmetic number, because the mean of its divisors is an integer number (2931867873).

Almost surely, 2^87063633408 is an apocalyptic number.

It is an amenable number.

87063633408 is an abundant number, since it is smaller than the sum of its proper divisors (147485796432).

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

87063633408 is an equidigital number, since it uses as much as digits as its factorization.

87063633408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636987 (or 636971 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 48.

The spelling of 87063633408 in words is "eighty-seven billion, sixty-three million, six hundred thirty-three thousand, four hundred eight".