108639547780 has 72 divisors (see below), whose sum is σ = 234166963968. Its totient is φ = 42336664512.

The previous prime is 108639547739. The next prime is 108639547789. The reversal of 108639547780 is 87745936801.

It is not an unprimeable number, because it can be changed into a prime (108639547789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9846627 + ... + 9857653.

It is an arithmetic number, because the mean of its divisors is an integer number (3252318944).

Almost surely, 2^108639547780 is an apocalyptic number.

108639547780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108639547780 is an abundant number, since it is smaller than the sum of its proper divisors (125527416188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108639547780 is a wasteful number, since it uses less digits than its factorization.

108639547780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11353 (or 11304 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 58.

The spelling of 108639547780 in words is "one hundred eight billion, six hundred thirty-nine million, five hundred forty-seven thousand, seven hundred eighty".