108109209587 has 2 divisors, whose sum is σ = 108109209588. Its totient is φ = 108109209586.

The previous prime is 108109209583. The next prime is 108109209643. The reversal of 108109209587 is 785902901801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 108109209587 - 2² = 108109209583 is a prime.

It is not a weakly prime, because it can be changed into another prime (108109209583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54054604793 + 54054604794.

It is an arithmetic number, because the mean of its divisors is an integer number (54054604794).

Almost surely, 2^108109209587 is an apocalyptic number.

108109209587 is a deficient number, since it is larger than the sum of its proper divisors (1).

108109209587 is an equidigital number, since it uses as much as digits as its factorization.

108109209587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 50.

The spelling of 108109209587 in words is "one hundred eight billion, one hundred nine million, two hundred nine thousand, five hundred eighty-seven".