108154171780 has 12 divisors (see below), whose sum is σ = 227123760780. Its totient is φ = 43261668704.

The previous prime is 108154171729. The next prime is 108154171799. The reversal of 108154171780 is 87171451801.

It can be written as a sum of positive squares in 2 ways, for example, as 67504353856 + 40649817924 = 259816^2 + 201618^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2703854275 + ... + 2703854314.

It is an arithmetic number, because the mean of its divisors is an integer number (18926980065).

Almost surely, 2^108154171780 is an apocalyptic number.

108154171780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108154171780 is an abundant number, since it is smaller than the sum of its proper divisors (118969589000).

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

108154171780 is a wasteful number, since it uses less digits than its factorization.

108154171780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5407708598 (or 5407708596 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 43.

The spelling of 108154171780 in words is "one hundred eight billion, one hundred fifty-four million, one hundred seventy-one thousand, seven hundred eighty".