87617471678 has 16 divisors (see below), whose sum is σ = 144175023360. Its totient is φ = 39603629400.

The previous prime is 87617471677. The next prime is 87617471681.

87617471678 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 87617471678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87617471671) 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 7 ways as a sum of consecutive naturals, for example, 11120678 + ... + 11128553.

It is an arithmetic number, because the mean of its divisors is an integer number (9010938960).

Almost surely, 2^87617471678 is an apocalyptic number.

87617471678 is a deficient number, since it is larger than the sum of its proper divisors (56557551682).

87617471678 is a wasteful number, since it uses less digits than its factorization.

87617471678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22249423.

The product of its digits is 22127616, while the sum is 62.

The spelling of 87617471678 in words is "eighty-seven billion, six hundred seventeen million, four hundred seventy-one thousand, six hundred seventy-eight".