87858108388585 has 16 divisors (see below), whose sum is σ = 105703831396800. Its totient is φ = 70103763002176.

The previous prime is 87858108388579. The next prime is 87858108388597. The reversal of 87858108388585 is 58588380185878.

It is a cyclic number.

It is not a de Polignac number, because 87858108388585 - 2⁹ = 87858108388073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87858108388499 and 87858108388508.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68095242 + ... + 69373468.

It is an arithmetic number, because the mean of its divisors is an integer number (6606489462300).

Almost surely, 2^{87858108388585} is an apocalyptic number.

It is an amenable number.

87858108388585 is a deficient number, since it is larger than the sum of its proper divisors (17845723008215).

87858108388585 is a wasteful number, since it uses less digits than its factorization.

87858108388585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313960.

The product of its (nonzero) digits is 5505024000, while the sum is 82.

The spelling of 87858108388585 in words is "eighty-seven trillion, eight hundred fifty-eight billion, one hundred eight million, three hundred eighty-eight thousand, five hundred eighty-five".