87406606888173 has 64 divisors (see below), whose sum is σ = 139902951271680. Its totient is φ = 53728617406464.

The previous prime is 87406606888163. The next prime is 87406606888219. The reversal of 87406606888173 is 37188860660478.

87406606888173 is a `hidden beast` number, since 8 + 7 + 4 + 0 + 6 + 606 + 8 + 8 + 8 + 1 + 7 + 3 = 666.

It is not a de Polignac number, because 87406606888173 - 2¹⁸ = 87406606626029 is a prime.

It is a super-3 number, since 3×87406606888173³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87406606888163) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13702690 + ... + 19041452.

It is an arithmetic number, because the mean of its divisors is an integer number (2185983613620).

Almost surely, 2^{87406606888173} is an apocalyptic number.

It is an amenable number.

87406606888173 is a deficient number, since it is larger than the sum of its proper divisors (52496344383507).

87406606888173 is a wasteful number, since it uses less digits than its factorization.

87406606888173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5339515 (or 5339509 counting only the distinct ones).

The product of its (nonzero) digits is 520224768, while the sum is 72.

The spelling of 87406606888173 in words is "eighty-seven trillion, four hundred six billion, six hundred six million, eight hundred eighty-eight thousand, one hundred seventy-three".