18472930568605 has 8 divisors (see below), whose sum is σ = 22585771714392. Its totient is φ = 14499507766848.

The previous prime is 18472930568593. The next prime is 18472930568621. The reversal of 18472930568605 is 50686503927481.

It can be written as a sum of positive squares in 4 ways, for example, as 5110732840249 + 13362197728356 = 2260693^2 + 3655434^2 .

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 18472930568605 - 2³⁹ = 17923174754717 is a prime.

It is a super-2 number, since 2×18472930568605² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34854585714 + ... + 34854586243.

It is an arithmetic number, because the mean of its divisors is an integer number (2823221464299).

It is a 2-persistent number, because it is pandigital, and so is 2⋅18472930568605 = 36945861137210, but 3⋅18472930568605 = 55418791705815 is not.

Almost surely, 2^{18472930568605} is an apocalyptic number.

It is an amenable number.

18472930568605 is a deficient number, since it is larger than the sum of its proper divisors (4112841145787).

18472930568605 is an equidigital number, since it uses as much as digits as its factorization.

18472930568605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69709172015.

The product of its (nonzero) digits is 87091200, while the sum is 64.

The spelling of 18472930568605 in words is "eighteen trillion, four hundred seventy-two billion, nine hundred thirty million, five hundred sixty-eight thousand, six hundred five".