8180378684 has 6 divisors (see below), whose sum is σ = 14315662704. Its totient is φ = 4090189340.

The previous prime is 8180378683. The next prime is 8180378719. The reversal of 8180378684 is 4868730818.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8180378683) by changing a digit.

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, 1022547332 + ... + 1022547339.

It is an arithmetic number, because the mean of its divisors is an integer number (2385943784).

Almost surely, 2^8180378684 is an apocalyptic number.

It is an amenable number.

8180378684 is a deficient number, since it is larger than the sum of its proper divisors (6135284020).

8180378684 is a wasteful number, since it uses less digits than its factorization.

8180378684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045094675 (or 2045094673 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 53.

The square root of 8180378684 is about 90445.4458997245. The cubic root of 8180378684 is about 2014.9199773650.

The spelling of 8180378684 in words is "eight billion, one hundred eighty million, three hundred seventy-eight thousand, six hundred eighty-four".