87633377985 has 16 divisors (see below), whose sum is σ = 141574702464. Its totient is φ = 46284035712.

The previous prime is 87633377977. The next prime is 87633378017. The reversal of 87633377985 is 58977333678.

It is not a de Polignac number, because 87633377985 - 2³ = 87633377977 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28358772 + ... + 28361861.

It is an arithmetic number, because the mean of its divisors is an integer number (8848418904).

Almost surely, 2^87633377985 is an apocalyptic number.

It is an amenable number.

87633377985 is a deficient number, since it is larger than the sum of its proper divisors (53941324479).

87633377985 is a wasteful number, since it uses less digits than its factorization.

87633377985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56720744.

The product of its digits is 160030080, while the sum is 66.

The spelling of 87633377985 in words is "eighty-seven billion, six hundred thirty-three million, three hundred seventy-seven thousand, nine hundred eighty-five".