8081156312 has 32 divisors (see below), whose sum is σ = 16384835520. Its totient is φ = 3721981440.

The previous prime is 8081156311. The next prime is 8081156333. The reversal of 8081156312 is 2136511808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081156311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 625739 + ... + 638522.

It is an arithmetic number, because the mean of its divisors is an integer number (512026110).

Almost surely, 2^8081156312 is an apocalyptic number.

It is an amenable number.

8081156312 is an abundant number, since it is smaller than the sum of its proper divisors (8303679208).

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

8081156312 is a wasteful number, since it uses less digits than its factorization.

8081156312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264331 (or 1264327 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 8081156312 is about 89895.2518879612. The cubic root of 8081156312 is about 2006.7402847623.

The spelling of 8081156312 in words is "eight billion, eighty-one million, one hundred fifty-six thousand, three hundred twelve".