13001806228 has 12 divisors (see below), whose sum is σ = 22755249972. Its totient is φ = 6500306240.

The previous prime is 13001806219. The next prime is 13001806243. The reversal of 13001806228 is 82260810031.

It can be written as a sum of positive squares in 2 ways, for example, as 810996484 + 12190809744 = 28478^2 + 110412^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13001806228.

It is a congruent 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, 98275 + ... + 188842.

It is an arithmetic number, because the mean of its divisors is an integer number (1896270831).

Almost surely, 2^13001806228 is an apocalyptic number.

It is an amenable number.

13001806228 is a deficient number, since it is larger than the sum of its proper divisors (9753443744).

13001806228 is a wasteful number, since it uses less digits than its factorization.

13001806228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298442 (or 298440 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The spelling of 13001806228 in words is "thirteen billion, one million, eight hundred six thousand, two hundred twenty-eight".