18484367429025 has 63 divisors (see below), whose sum is σ = 34366281936931. Its totient is φ = 9858019742640.

The previous prime is 18484367428979. The next prime is 18484367429039. The reversal of 18484367429025 is 52092476348481.

The square root of 18484367429025 is 4299345.

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

18484367429025 is a `hidden beast` number, since 1 + 8 + 48 + 436 + 74 + 2 + 90 + 2 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6654372274449 + 11829995154576 = 2579607^2 + 3439476^2 .

It is not a de Polignac number, because 18484367429025 - 2¹³ = 18484367420833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 580395652 + ... + 580427498.

It is a 1-persistent number, because it is pandigital, but 2⋅18484367429025 = 36968734858050 is not.

Almost surely, 2^{18484367429025} is an apocalyptic number.

18484367429025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18484367429025 is the 4299345-th square number.

18484367429025 is the 2149673-rd centered octagonal number.

It is an amenable number.

18484367429025 is a deficient number, since it is larger than the sum of its proper divisors (15881914507906).

18484367429025 is an frugal number, since it uses more digits than its factorization.

18484367429025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63722 (or 31855 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 63.

The spelling of 18484367429025 in words is "eighteen trillion, four hundred eighty-four billion, three hundred sixty-seven million, four hundred twenty-nine thousand, twenty-five".