18603572612 has 12 divisors (see below), whose sum is σ = 33170521356. Its totient is φ = 9126280800.

The previous prime is 18603572597. The next prime is 18603572623. The reversal of 18603572612 is 21627530681.

It can be written as a sum of positive squares in 2 ways, for example, as 15471379456 + 3132193156 = 124384^2 + 55966^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18603572612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43876139 + ... + 43876562.

It is an arithmetic number, because the mean of its divisors is an integer number (2764210113).

Almost surely, 2^18603572612 is an apocalyptic number.

It is an amenable number.

18603572612 is a deficient number, since it is larger than the sum of its proper divisors (14566948744).

18603572612 is a wasteful number, since it uses less digits than its factorization.

18603572612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87752758 (or 87752756 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 18603572612 in words is "eighteen billion, six hundred three million, five hundred seventy-two thousand, six hundred twelve".