13138644451 has 8 divisors (see below), whose sum is σ = 13367646000. Its totient is φ = 12909853440.

The previous prime is 13138644439. The next prime is 13138644479. The reversal of 13138644451 is 15444683131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13138644451 - 2¹¹ = 13138642403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13138644401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75975 + ... + 179023.

It is an arithmetic number, because the mean of its divisors is an integer number (1670955750).

Almost surely, 2^13138644451 is an apocalyptic number.

13138644451 is a deficient number, since it is larger than the sum of its proper divisors (229001549).

13138644451 is a wasteful number, since it uses less digits than its factorization.

13138644451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105269.

The product of its digits is 138240, while the sum is 40.

The spelling of 13138644451 in words is "thirteen billion, one hundred thirty-eight million, six hundred forty-four thousand, four hundred fifty-one".