1808527909132 has 96 divisors (see below), whose sum is σ = 3931619328000. Its totient is φ = 710354733120.

The previous prime is 1808527909109. The next prime is 1808527909147. The reversal of 1808527909132 is 2319097258081.

It is a happy number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 51420969 + ... + 51456127.

It is an arithmetic number, because the mean of its divisors is an integer number (40954368000).

Almost surely, 2^{1808527909132} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1808527909132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1965809664000).

1808527909132 is an abundant number, since it is smaller than the sum of its proper divisors (2123091418868).

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

1808527909132 is a wasteful number, since it uses less digits than its factorization.

1808527909132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38339 (or 38337 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 55.

The spelling of 1808527909132 in words is "one trillion, eight hundred eight billion, five hundred twenty-seven million, nine hundred nine thousand, one hundred thirty-two".