18230942672 has 10 divisors (see below), whose sum is σ = 35322451458. Its totient is φ = 9115471328.

The previous prime is 18230942669. The next prime is 18230942687. The reversal of 18230942672 is 27624903281.

It can be written as a sum of positive squares in only one way, i.e., 12147566656 + 6083376016 = 110216^2 + 77996^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 569716943 + ... + 569716974.

Almost surely, 2^18230942672 is an apocalyptic number.

It is an amenable number.

18230942672 is a deficient number, since it is larger than the sum of its proper divisors (17091508786).

18230942672 is a wasteful number, since it uses less digits than its factorization.

18230942672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139433925 (or 1139433919 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 18230942672 in words is "eighteen billion, two hundred thirty million, nine hundred forty-two thousand, six hundred seventy-two".