18381828291004 has 6 divisors (see below), whose sum is σ = 32168199509264. Its totient is φ = 9190914145500.

The previous prime is 18381828290951. The next prime is 18381828291017. The reversal of 18381828291004 is 40019282818381.

It is a super-2 number, since 2×18381828291004² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2297728536372 + ... + 2297728536379.

Almost surely, 2^{18381828291004} is an apocalyptic number.

It is an amenable number.

18381828291004 is a deficient number, since it is larger than the sum of its proper divisors (13786371218260).

18381828291004 is a wasteful number, since it uses less digits than its factorization.

18381828291004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4595457072755 (or 4595457072753 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 55.

The spelling of 18381828291004 in words is "eighteen trillion, three hundred eighty-one billion, eight hundred twenty-eight million, two hundred ninety-one thousand, four".