18729057067 has 16 divisors (see below), whose sum is σ = 22374093312. Its totient is φ = 15328811520.

The previous prime is 18729057041. The next prime is 18729057071. The reversal of 18729057067 is 76075092781.

It is a cyclic number.

It is not a de Polignac number, because 18729057067 - 2⁷ = 18729056939 is a prime.

It is a super-3 number, since 3×18729057067³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18729057077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7909 + ... + 193702.

It is an arithmetic number, because the mean of its divisors is an integer number (1398380832).

Almost surely, 2^18729057067 is an apocalyptic number.

18729057067 is a deficient number, since it is larger than the sum of its proper divisors (3645036245).

18729057067 is a wasteful number, since it uses less digits than its factorization.

18729057067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202218.

The product of its (nonzero) digits is 1481760, while the sum is 52.

The spelling of 18729057067 in words is "eighteen billion, seven hundred twenty-nine million, fifty-seven thousand, sixty-seven".