108782578491 has 8 divisors (see below), whose sum is σ = 145059307344. Its totient is φ = 72513784320.

The previous prime is 108782578453. The next prime is 108782578573. The reversal of 108782578491 is 194875287801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 108782578491 - 2¹⁰ = 108782577467 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (108782576491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1951606 + ... + 2006571.

It is an arithmetic number, because the mean of its divisors is an integer number (18132413418).

Almost surely, 2^108782578491 is an apocalyptic number.

108782578491 is a deficient number, since it is larger than the sum of its proper divisors (36276728853).

108782578491 is an equidigital number, since it uses as much as digits as its factorization.

108782578491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3967341.

The product of its (nonzero) digits is 9031680, while the sum is 60.

The spelling of 108782578491 in words is "one hundred eight billion, seven hundred eighty-two million, five hundred seventy-eight thousand, four hundred ninety-one".