108378958019 has 4 divisors (see below), whose sum is σ = 110684893344. Its totient is φ = 106073022696.

The previous prime is 108378958013. The next prime is 108378958027. The reversal of 108378958019 is 910859873801.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108378958019 is a prime.

It is a super-2 number, since 2×108378958019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108378958013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1152967592 + ... + 1152967685.

It is an arithmetic number, because the mean of its divisors is an integer number (27671223336).

Almost surely, 2^108378958019 is an apocalyptic number.

108378958019 is a deficient number, since it is larger than the sum of its proper divisors (2305935325).

108378958019 is an equidigital number, since it uses as much as digits as its factorization.

108378958019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305935324.

The product of its (nonzero) digits is 4354560, while the sum is 59.

The spelling of 108378958019 in words is "one hundred eight billion, three hundred seventy-eight million, nine hundred fifty-eight thousand, nineteen".