108782578551 has 4 divisors (see below), whose sum is σ = 145043438072. Its totient is φ = 72521719032.

The previous prime is 108782578453. The next prime is 108782578573. The reversal of 108782578551 is 155875287801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155875287801 = 3 ⋅51958429267.

It is not a de Polignac number, because 108782578551 - 2¹⁴ = 108782562167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 108782578491 and 108782578500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108782578351) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 18130429756 + ... + 18130429761.

It is an arithmetic number, because the mean of its divisors is an integer number (36260859518).

Almost surely, 2^108782578551 is an apocalyptic number.

108782578551 is a deficient number, since it is larger than the sum of its proper divisors (36260859521).

108782578551 is an equidigital number, since it uses as much as digits as its factorization.

108782578551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36260859520.

The product of its (nonzero) digits is 6272000, while the sum is 57.

The spelling of 108782578551 in words is "one hundred eight billion, seven hundred eighty-two million, five hundred seventy-eight thousand, five hundred fifty-one".