108598585861 has 4 divisors (see below), whose sum is σ = 108600146572. Its totient is φ = 108597025152.

The previous prime is 108598585787. The next prime is 108598585897. The reversal of 108598585861 is 168585895801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 168585895801 = 661 ⋅255046741.

It can be written as a sum of positive squares in 2 ways, for example, as 74205028836 + 34393557025 = 272406^2 + 185455^2 .

It is a cyclic number.

It is not a de Polignac number, because 108598585861 - 2⁹ = 108598585349 is a prime.

It is a super-2 number, since 2×108598585861² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 108598585793 and 108598585802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108598585261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670860 + ... + 816853.

It is an arithmetic number, because the mean of its divisors is an integer number (27150036643).

Almost surely, 2^108598585861 is an apocalyptic number.

It is an amenable number.

108598585861 is a deficient number, since it is larger than the sum of its proper divisors (1560711).

108598585861 is an equidigital number, since it uses as much as digits as its factorization.

108598585861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560710.

The product of its (nonzero) digits is 27648000, while the sum is 64.

The spelling of 108598585861 in words is "one hundred eight billion, five hundred ninety-eight million, five hundred eighty-five thousand, eight hundred sixty-one".