108377780082138 has 64 divisors (see below), whose sum is σ = 275251362174720. Its totient is φ = 30964381802496.

The previous prime is 108377780082067. The next prime is 108377780082179. The reversal of 108377780082138 is 831280087773801.

108377780082138 is a `hidden beast` number, since 108 + 377 + 7 + 80 + 0 + 82 + 1 + 3 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13670170 + ... + 20090522.

It is an arithmetic number, because the mean of its divisors is an integer number (4300802533980).

Almost surely, 2^{108377780082138} is an apocalyptic number.

108377780082138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

108377780082138 is an abundant number, since it is smaller than the sum of its proper divisors (166873582092582).

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

108377780082138 is a wasteful number, since it uses less digits than its factorization.

108377780082138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6465028 (or 6465022 counting only the distinct ones).

The product of its (nonzero) digits is 25288704, while the sum is 63.

The spelling of 108377780082138 in words is "one hundred eight trillion, three hundred seventy-seven billion, seven hundred eighty million, eighty-two thousand, one hundred thirty-eight".