30225237818 has 8 divisors (see below), whose sum is σ = 46193288148. Its totient is φ = 14827475104.

The previous prime is 30225237797. The next prime is 30225237869. The reversal of 30225237818 is 81873252203.

It can be written as a sum of positive squares in 2 ways, for example, as 29665584169 + 559653649 = 172237^2 + 23657^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×30225237818² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142571771 + ... + 142571982.

Almost surely, 2^30225237818 is an apocalyptic number.

30225237818 is a deficient number, since it is larger than the sum of its proper divisors (15968050330).

30225237818 is a wasteful number, since it uses less digits than its factorization.

30225237818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285143808.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 30225237818 in words is "thirty billion, two hundred twenty-five million, two hundred thirty-seven thousand, eight hundred eighteen".