13612998906 has 24 divisors (see below), whose sum is σ = 31763664660. Its totient is φ = 4188614976.

The previous prime is 13612998899. The next prime is 13612998929. The reversal of 13612998906 is 60989921631.

13612998906 is a `hidden beast` number, since 13 + 612 + 9 + 9 + 8 + 9 + 0 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13580406225 + 32592681 = 116535^2 + 5709^2 .

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 11 ways as a sum of consecutive naturals, for example, 29087371 + ... + 29087838.

Almost surely, 2^13612998906 is an apocalyptic number.

13612998906 is an abundant number, since it is smaller than the sum of its proper divisors (18150665754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13612998906 is a wasteful number, since it uses less digits than its factorization.

13612998906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58175230 (or 58175227 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The spelling of 13612998906 in words is "thirteen billion, six hundred twelve million, nine hundred ninety-eight thousand, nine hundred six".