108136142687 has 16 divisors (see below), whose sum is σ = 113348162592. Its totient is φ = 103051428480.

The previous prime is 108136142633. The next prime is 108136142713. The reversal of 108136142687 is 786241631801.

It is a cyclic number.

It is not a de Polignac number, because 108136142687 - 2¹⁶ = 108136077151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108136142617) 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, 1104137 + ... + 1198077.

It is an arithmetic number, because the mean of its divisors is an integer number (7084260162).

Almost surely, 2^108136142687 is an apocalyptic number.

108136142687 is a deficient number, since it is larger than the sum of its proper divisors (5212019905).

108136142687 is an equidigital number, since it uses as much as digits as its factorization.

108136142687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94618.

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 108136142687 in words is "one hundred eight billion, one hundred thirty-six million, one hundred forty-two thousand, six hundred eighty-seven".