13644370117 has 48 divisors (see below), whose sum is σ = 17067386880. Its totient is φ = 10843308000.

The previous prime is 13644370099. The next prime is 13644370121. The reversal of 13644370117 is 71107344631.

It is not a de Polignac number, because 13644370117 - 2²³ = 13635981509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13644370127) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9980568 + ... + 9981934.

It is an arithmetic number, because the mean of its divisors is an integer number (355570560).

Almost surely, 2^13644370117 is an apocalyptic number.

It is an amenable number.

13644370117 is a deficient number, since it is larger than the sum of its proper divisors (3423016763).

13644370117 is a wasteful number, since it uses less digits than its factorization.

13644370117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622 (or 1615 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The spelling of 13644370117 in words is "thirteen billion, six hundred forty-four million, three hundred seventy thousand, one hundred seventeen".