13138883636 has 24 divisors (see below), whose sum is σ = 25130923776. Its totient is φ = 5983551360.

The previous prime is 13138883627. The next prime is 13138883651. The reversal of 13138883636 is 63638883131.

It is a happy number.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

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, 3114326 + ... + 3118541.

It is an arithmetic number, because the mean of its divisors is an integer number (1047121824).

Almost surely, 2^13138883636 is an apocalyptic number.

It is an amenable number.

13138883636 is a deficient number, since it is larger than the sum of its proper divisors (11992040140).

13138883636 is a wasteful number, since it uses less digits than its factorization.

13138883636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6232919 (or 6232917 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 50.

The spelling of 13138883636 in words is "thirteen billion, one hundred thirty-eight million, eight hundred eighty-three thousand, six hundred thirty-six".