87723308085 has 128 divisors (see below), whose sum is σ = 170509086720. Its totient is φ = 37620412416.

The previous prime is 87723308077. The next prime is 87723308087. The reversal of 87723308085 is 58080332778.

It is not a de Polignac number, because 87723308085 - 2³ = 87723308077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87723308087) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 149443162 + ... + 149443748.

It is an arithmetic number, because the mean of its divisors is an integer number (1332102240).

Almost surely, 2^87723308085 is an apocalyptic number.

It is an amenable number.

87723308085 is a deficient number, since it is larger than the sum of its proper divisors (82785778635).

87723308085 is a wasteful number, since it uses less digits than its factorization.

87723308085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227.

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 87723308085 in words is "eighty-seven billion, seven hundred twenty-three million, three hundred eight thousand, eighty-five".