8479756378 has 4 divisors (see below), whose sum is σ = 12719634570. Its totient is φ = 4239878188.

The previous prime is 8479756361. The next prime is 8479756381. The reversal of 8479756378 is 8736579748.

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., 8181745209 + 298011169 = 90453^2 + 17263^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2119939093 + ... + 2119939096.

Almost surely, 2^8479756378 is an apocalyptic number.

8479756378 is a deficient number, since it is larger than the sum of its proper divisors (4239878192).

8479756378 is a wasteful number, since it uses less digits than its factorization.

8479756378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4239878191.

The product of its digits is 71124480, while the sum is 64.

The square root of 8479756378 is about 92085.5926733384. The cubic root of 8479756378 is about 2039.2061163465.

The spelling of 8479756378 in words is "eight billion, four hundred seventy-nine million, seven hundred fifty-six thousand, three hundred seventy-eight".