8020726686 has 48 divisors (see below), whose sum is σ = 19975703904. Its totient is φ = 2278383552.

The previous prime is 8020726643. The next prime is 8020726711. The reversal of 8020726686 is 6866270208.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162181 + ... + 205776.

It is an arithmetic number, because the mean of its divisors is an integer number (416160498).

Almost surely, 2^8020726686 is an apocalyptic number.

8020726686 is an abundant number, since it is smaller than the sum of its proper divisors (11954977218).

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

8020726686 is a wasteful number, since it uses less digits than its factorization.

8020726686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368145 (or 368142 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 8020726686 is about 89558.5098469152. The cubic root of 8020726686 is about 2001.7257343256.

The spelling of 8020726686 in words is "eight billion, twenty million, seven hundred twenty-six thousand, six hundred eighty-six".