87717221074 has 16 divisors (see below), whose sum is σ = 158286715200. Its totient is φ = 35614510704.

The previous prime is 87717221057. The next prime is 87717221077. The reversal of 87717221074 is 47012271778.

It is not an unprimeable number, because it can be changed into a prime (87717221077) 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, 164881729 + ... + 164882260.

It is an arithmetic number, because the mean of its divisors is an integer number (9892919700).

Almost surely, 2^87717221074 is an apocalyptic number.

87717221074 is a deficient number, since it is larger than the sum of its proper divisors (70569494126).

87717221074 is a wasteful number, since it uses less digits than its factorization.

87717221074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329764017.

The product of its (nonzero) digits is 307328, while the sum is 46.

The spelling of 87717221074 in words is "eighty-seven billion, seven hundred seventeen million, two hundred twenty-one thousand, seventy-four".