1800809372068 has 48 divisors (see below), whose sum is σ = 3629802451968. Its totient is φ = 765738324000.

The previous prime is 1800809372057. The next prime is 1800809372101. The reversal of 1800809372068 is 8602739080081.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20463883 + ... + 20551693.

It is an arithmetic number, because the mean of its divisors is an integer number (75620884416).

Almost surely, 2^{1800809372068} is an apocalyptic number.

It is an amenable number.

1800809372068 is an abundant number, since it is smaller than the sum of its proper divisors (1828993079900).

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

1800809372068 is a wasteful number, since it uses less digits than its factorization.

1800809372068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93544 (or 93542 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 1800809372068 in words is "one trillion, eight hundred billion, eight hundred nine million, three hundred seventy-two thousand, sixty-eight".