87805864104 has 32 divisors (see below), whose sum is σ = 250873897920. Its totient is φ = 25087389696.

The previous prime is 87805864103. The next prime is 87805864121. The reversal of 87805864104 is 40146850878.

It is not an unprimeable number, because it can be changed into a prime (87805864103) 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, 261326809 + ... + 261327144.

It is an arithmetic number, because the mean of its divisors is an integer number (7839809310).

Almost surely, 2^87805864104 is an apocalyptic number.

87805864104 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

87805864104 is an abundant number, since it is smaller than the sum of its proper divisors (163068033816).

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

87805864104 is a wasteful number, since it uses less digits than its factorization.

87805864104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522653969 (or 522653965 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 51.

The spelling of 87805864104 in words is "eighty-seven billion, eight hundred five million, eight hundred sixty-four thousand, one hundred four".