8578575478474 has 4 divisors (see below), whose sum is σ = 12867863217714. Its totient is φ = 4289287739236.

The previous prime is 8578575478463. The next prime is 8578575478477. The reversal of 8578575478474 is 4748745758758.

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

It can be written as a sum of positive squares in only one way, i.e., 6380600220225 + 2197975258249 = 2525985^2 + 1482557^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8578575478394 and 8578575478403.

It is not an unprimeable number, because it can be changed into a prime (8578575478477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2144643869617 + ... + 2144643869620.

Almost surely, 2^{8578575478474} is an apocalyptic number.

8578575478474 is a deficient number, since it is larger than the sum of its proper divisors (4289287739240).

8578575478474 is a wasteful number, since it uses less digits than its factorization.

8578575478474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4289287739239.

The product of its digits is 9834496000, while the sum is 79.

The spelling of 8578575478474 in words is "eight trillion, five hundred seventy-eight billion, five hundred seventy-five million, four hundred seventy-eight thousand, four hundred seventy-four".