1808843097097 has 8 divisors (see below), whose sum is σ = 1827225050112. Its totient is φ = 1790551032000.

The previous prime is 1808843097053. The next prime is 1808843097109. The reversal of 1808843097097 is 7907903488081.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1808843097097 - 2²³ = 1808834708489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1808843017097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22431529 + ... + 22512022.

It is an arithmetic number, because the mean of its divisors is an integer number (228403131264).

Almost surely, 2^{1808843097097} is an apocalyptic number.

It is an amenable number.

1808843097097 is a deficient number, since it is larger than the sum of its proper divisors (18381953015).

1808843097097 is a wasteful number, since it uses less digits than its factorization.

1808843097097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44943959.

The product of its (nonzero) digits is 24385536, while the sum is 64.

The spelling of 1808843097097 in words is "one trillion, eight hundred eight billion, eight hundred forty-three million, ninety-seven thousand, ninety-seven".