108028815631 has 4 divisors (see below), whose sum is σ = 117849617064. Its totient is φ = 98208014200.

The previous prime is 108028815623. The next prime is 108028815701. The reversal of 108028815631 is 136518820801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 108028815631 - 2³ = 108028815623 is a prime.

It is a super-2 number, since 2×108028815631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108028813631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4910400700 + ... + 4910400721.

It is an arithmetic number, because the mean of its divisors is an integer number (29462404266).

Almost surely, 2^108028815631 is an apocalyptic number.

108028815631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

108028815631 is a deficient number, since it is larger than the sum of its proper divisors (9820801433).

108028815631 is an equidigital number, since it uses as much as digits as its factorization.

108028815631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9820801432.

The product of its (nonzero) digits is 92160, while the sum is 43.

The spelling of 108028815631 in words is "one hundred eight billion, twenty-eight million, eight hundred fifteen thousand, six hundred thirty-one".