18154428313569 has 16 divisors (see below), whose sum is σ = 25630406182080. Its totient is φ = 11390736051200.

The previous prime is 18154428313543. The next prime is 18154428313573. The reversal of 18154428313569 is 96531382445181.

It is a cyclic number.

It is not a de Polignac number, because 18154428313569 - 2⁵ = 18154428313537 is a prime.

It is a super-2 number, since 2×18154428313569² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18154428313069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2218659 + ... + 6421160.

It is an arithmetic number, because the mean of its divisors is an integer number (1601900386380).

Almost surely, 2^{18154428313569} is an apocalyptic number.

It is an amenable number.

18154428313569 is a deficient number, since it is larger than the sum of its proper divisors (7475977868511).

18154428313569 is a wasteful number, since it uses less digits than its factorization.

18154428313569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8681040.

The product of its digits is 24883200, while the sum is 60.

The spelling of 18154428313569 in words is "eighteen trillion, one hundred fifty-four billion, four hundred twenty-eight million, three hundred thirteen thousand, five hundred sixty-nine".