1808541313492 has 6 divisors (see below), whose sum is σ = 3164947298618. Its totient is φ = 904270656744.

The previous prime is 1808541313429. The next prime is 1808541313507. The reversal of 1808541313492 is 2943131458081.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1230400066756 + 578141246736 = 1109234^2 + 760356^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226067664183 + ... + 226067664190.

Almost surely, 2^{1808541313492} is an apocalyptic number.

It is an amenable number.

1808541313492 is a deficient number, since it is larger than the sum of its proper divisors (1356405985126).

1808541313492 is a wasteful number, since it uses less digits than its factorization.

1808541313492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452135328377 (or 452135328375 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 1808541313492 in words is "one trillion, eight hundred eight billion, five hundred forty-one million, three hundred thirteen thousand, four hundred ninety-two".