18069291944641 has 16 divisors (see below), whose sum is σ = 21317724361728. Its totient is φ = 14987680588800.

The previous prime is 18069291944603. The next prime is 18069291944663. The reversal of 18069291944641 is 14644919296081.

It is a cyclic number.

It is not a de Polignac number, because 18069291944641 - 2²⁹ = 18068755073729 is a prime.

It is a super-2 number, since 2×18069291944641² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18069391944641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3012021 + ... + 6723901.

It is an arithmetic number, because the mean of its divisors is an integer number (1332357772608).

Almost surely, 2^{18069291944641} is an apocalyptic number.

It is an amenable number.

18069291944641 is a deficient number, since it is larger than the sum of its proper divisors (3248432417087).

18069291944641 is a wasteful number, since it uses less digits than its factorization.

18069291944641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3734352.

The product of its (nonzero) digits is 26873856, while the sum is 64.

The spelling of 18069291944641 in words is "eighteen trillion, sixty-nine billion, two hundred ninety-one million, nine hundred forty-four thousand, six hundred forty-one".