8081554812 has 24 divisors (see below), whose sum is σ = 18863247312. Its totient is φ = 2692953600.

The previous prime is 8081554777. The next prime is 8081554847. The reversal of 8081554812 is 2184551808.

It is an interprime number because it is at equal distance from previous prime (8081554777) and next prime (8081554847).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74239 + ... + 147222.

It is an arithmetic number, because the mean of its divisors is an integer number (785968638).

Almost surely, 2^8081554812 is an apocalyptic number.

It is an amenable number.

8081554812 is an abundant number, since it is smaller than the sum of its proper divisors (10781692500).

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

8081554812 is a wasteful number, since it uses less digits than its factorization.

8081554812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224509 (or 224507 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 42.

The square root of 8081554812 is about 89897.4683292027. The cubic root of 8081554812 is about 2006.7732698462.

The spelling of 8081554812 in words is "eight billion, eighty-one million, five hundred fifty-four thousand, eight hundred twelve".