18225306285 has 16 divisors (see below), whose sum is σ = 29339392704. Its totient is φ = 9660529152.

The previous prime is 18225306271. The next prime is 18225306287. The reversal of 18225306285 is 58260352281.

It is a happy number.

It is not a de Polignac number, because 18225306285 - 2¹³ = 18225298093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18225306287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3724612 + ... + 3729501.

It is an arithmetic number, because the mean of its divisors is an integer number (1833712044).

Almost surely, 2^18225306285 is an apocalyptic number.

18225306285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18225306285 is a deficient number, since it is larger than the sum of its proper divisors (11114086419).

18225306285 is a wasteful number, since it uses less digits than its factorization.

18225306285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7454284.

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 18225306285 in words is "eighteen billion, two hundred twenty-five million, three hundred six thousand, two hundred eighty-five".