108378358813 has 4 divisors (see below), whose sum is σ = 108401320188. Its totient is φ = 108355397440.

The previous prime is 108378358789. The next prime is 108378358849. The reversal of 108378358813 is 318853873801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 318853873801 = 71 ⋅4490899631.

It can be written as a sum of positive squares in 2 ways, for example, as 69499195129 + 38879163684 = 263627^2 + 197178^2 .

It is a cyclic number.

It is not a de Polignac number, because 108378358813 - 2¹³ = 108378350621 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 (108378358013) 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 3 ways as a sum of consecutive naturals, for example, 11473606 + ... + 11483047.

It is an arithmetic number, because the mean of its divisors is an integer number (27100330047).

Almost surely, 2^108378358813 is an apocalyptic number.

It is an amenable number.

108378358813 is a deficient number, since it is larger than the sum of its proper divisors (22961375).

108378358813 is an equidigital number, since it uses as much as digits as its factorization.

108378358813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22961374.

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 108378358813 in words is "one hundred eight billion, three hundred seventy-eight million, three hundred fifty-eight thousand, eight hundred thirteen".