18294054894025 has 9 divisors (see below), whose sum is σ = 22684654586983. Its totient is φ = 14635226806600.

The previous prime is 18294054893971. The next prime is 18294054894043. The reversal of 18294054894025 is 52049845049281.

It is a happy number.

The square root of 18294054894025 is 4277155.

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

It can be written as a sum of positive squares in only one way, i.e., 6585859761849 + 11708195132176 = 2566293^2 + 3421724^2 .

It is not a de Polignac number, because 18294054894025 - 2⁴³ = 9497961871817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 20958060 + ... + 21813490.

Almost surely, 2^{18294054894025} is an apocalyptic number.

18294054894025 is the 4277155-th square number.

18294054894025 is the 2138578-th centered octagonal number.

It is an amenable number.

18294054894025 is a deficient number, since it is larger than the sum of its proper divisors (4390599692958).

18294054894025 is an frugal number, since it uses more digits than its factorization.

18294054894025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710872 (or 855436 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 61.

The spelling of 18294054894025 in words is "eighteen trillion, two hundred ninety-four billion, fifty-four million, eight hundred ninety-four thousand, twenty-five".