13681986812 has 24 divisors (see below), whose sum is σ = 25791175872. Its totient is φ = 6313320000.

The previous prime is 13681986797. The next prime is 13681986833. The reversal of 13681986812 is 21868918631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219362 + ... + 274742.

It is an arithmetic number, because the mean of its divisors is an integer number (1074632328).

Almost surely, 2^13681986812 is an apocalyptic number.

It is an amenable number.

13681986812 is a deficient number, since it is larger than the sum of its proper divisors (12109189060).

13681986812 is a wasteful number, since it uses less digits than its factorization.

13681986812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60149 (or 60147 counting only the distinct ones).

The product of its digits is 995328, while the sum is 53.

The spelling of 13681986812 in words is "thirteen billion, six hundred eighty-one million, nine hundred eighty-six thousand, eight hundred twelve".