8901609511812 has 24 divisors (see below), whose sum is σ = 20780069454816. Its totient is φ = 2965824990528.

The previous prime is 8901609511787. The next prime is 8901609511819. The reversal of 8901609511812 is 2181159061098.

It is not an unprimeable number, because it can be changed into a prime (8901609511819) 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 7 ways as a sum of consecutive naturals, for example, 172245598 + ... + 172297269.

It is an arithmetic number, because the mean of its divisors is an integer number (865836227284).

Almost surely, 2^{8901609511812} is an apocalyptic number.

It is an amenable number.

8901609511812 is an abundant number, since it is smaller than the sum of its proper divisors (11878459943004).

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

8901609511812 is a wasteful number, since it uses less digits than its factorization.

8901609511812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344545027 (or 344545025 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 51.

The spelling of 8901609511812 in words is "eight trillion, nine hundred one billion, six hundred nine million, five hundred eleven thousand, eight hundred twelve".