8486178242 has 4 divisors (see below), whose sum is σ = 12729267366. Its totient is φ = 4243089120.

The previous prime is 8486178223. The next prime is 8486178251. The reversal of 8486178242 is 2428716848.

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., 4324509121 + 4161669121 = 65761^2 + 64511^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121544559 + ... + 2121544562.

Almost surely, 2^8486178242 is an apocalyptic number.

8486178242 is a deficient number, since it is larger than the sum of its proper divisors (4243089124).

8486178242 is a wasteful number, since it uses less digits than its factorization.

8486178242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243089123.

The product of its digits is 1376256, while the sum is 50.

The square root of 8486178242 is about 92120.4550683506. The cubic root of 8486178242 is about 2039.7207616318.

The spelling of 8486178242 in words is "eight billion, four hundred eighty-six million, one hundred seventy-eight thousand, two hundred forty-two".