87117147633 has 16 divisors (see below), whose sum is σ = 121232019456. Its totient is φ = 55541251920.

The previous prime is 87117147631. The next prime is 87117147641. The reversal of 87117147633 is 33674171178.

It is not a de Polignac number, because 87117147633 - 2¹ = 87117147631 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87117147631) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 202666 + ... + 464012.

It is an arithmetic number, because the mean of its divisors is an integer number (7577001216).

Almost surely, 2^87117147633 is an apocalyptic number.

It is an amenable number.

87117147633 is a deficient number, since it is larger than the sum of its proper divisors (34114871823).

87117147633 is a wasteful number, since it uses less digits than its factorization.

87117147633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266204.

The product of its digits is 592704, while the sum is 48.

The spelling of 87117147633 in words is "eighty-seven billion, one hundred seventeen million, one hundred forty-seven thousand, six hundred thirty-three".