8013673728 has 54 divisors (see below), whose sum is σ = 23105403594. Its totient is φ = 2671223808.

The previous prime is 8013673727. The next prime is 8013673781. The reversal of 8013673728 is 8273763108.

It can be written as a sum of positive squares in only one way, i.e., 6151578624 + 1862095104 = 78432^2 + 43152^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8013673727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1736775 + ... + 1741382.

Almost surely, 2^8013673728 is an apocalyptic number.

It is an amenable number.

8013673728 is an abundant number, since it is smaller than the sum of its proper divisors (15091729866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8013673728 is a wasteful number, since it uses less digits than its factorization.

8013673728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3478179 (or 3478162 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 8013673728 is about 89519.1249286989. The cubic root of 8013673728 is about 2001.1388287448.

The spelling of 8013673728 in words is "eight billion, thirteen million, six hundred seventy-three thousand, seven hundred twenty-eight".