87623789169 has 16 divisors (see below), whose sum is σ = 134843967360. Its totient is φ = 49574985600.

The previous prime is 87623789161. The next prime is 87623789189. The reversal of 87623789169 is 96198732678.

It is not a de Polignac number, because 87623789169 - 2³ = 87623789161 is a prime.

It is a super-2 number, since 2×87623789169² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87623789161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20654124 + ... + 20658365.

It is an arithmetic number, because the mean of its divisors is an integer number (8427747960).

Almost surely, 2^87623789169 is an apocalyptic number.

It is an amenable number.

87623789169 is a deficient number, since it is larger than the sum of its proper divisors (47220178191).

87623789169 is a wasteful number, since it uses less digits than its factorization.

87623789169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41312600.

The product of its digits is 54867456, while the sum is 66.

The spelling of 87623789169 in words is "eighty-seven billion, six hundred twenty-three million, seven hundred eighty-nine thousand, one hundred sixty-nine".