108799572478 has 4 divisors (see below), whose sum is σ = 163199358720. Its totient is φ = 54399786238.

The previous prime is 108799572473. The next prime is 108799572503. The reversal of 108799572478 is 874275997801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 874275997801 = 2011 ⋅434746891.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108799572473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27199893118 + ... + 27199893121.

It is an arithmetic number, because the mean of its divisors is an integer number (40799839680).

Almost surely, 2^108799572478 is an apocalyptic number.

108799572478 is a deficient number, since it is larger than the sum of its proper divisors (54399786242).

108799572478 is an equidigital number, since it uses as much as digits as its factorization.

108799572478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54399786241.

The product of its (nonzero) digits is 71124480, while the sum is 67.

The spelling of 108799572478 in words is "one hundred eight billion, seven hundred ninety-nine million, five hundred seventy-two thousand, four hundred seventy-eight".