1801401807188 has 12 divisors (see below), whose sum is σ = 3161234371680. Its totient is φ = 898191986712.

The previous prime is 1801401807119. The next prime is 1801401807203. The reversal of 1801401807188 is 8817081041081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627227606 + ... + 627230477.

It is an arithmetic number, because the mean of its divisors is an integer number (263436197640).

Almost surely, 2^{1801401807188} is an apocalyptic number.

It is an amenable number.

1801401807188 is a deficient number, since it is larger than the sum of its proper divisors (1359832564492).

1801401807188 is a wasteful number, since it uses less digits than its factorization.

1801401807188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254458446 (or 1254458444 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 47.

The spelling of 1801401807188 in words is "one trillion, eight hundred one billion, four hundred one million, eight hundred seven thousand, one hundred eighty-eight".