18427290460804 has 81 divisors (see below), whose sum is σ = 33110790838671. Its totient is φ = 8973464260800.

The previous prime is 18427290460801. The next prime is 18427290460829. The reversal of 18427290460804 is 40806409272481.

The square root of 18427290460804 is 4292702.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 66408259204 + 18360882201600 = 257698^2 + 4284960^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18427290460801) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 68502938382 + ... + 68502938650.

Almost surely, 2^{18427290460804} is an apocalyptic number.

18427290460804 is the 4292702-nd square number.

It is an amenable number.

18427290460804 is a deficient number, since it is larger than the sum of its proper divisors (14683500377867).

18427290460804 is an frugal number, since it uses more digits than its factorization.

18427290460804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 55.

The spelling of 18427290460804 in words is "eighteen trillion, four hundred twenty-seven billion, two hundred ninety million, four hundred sixty thousand, eight hundred four".