13509918407 has 8 divisors (see below), whose sum is σ = 13829984784. Its totient is φ = 13190119488.

The previous prime is 13509918341. The next prime is 13509918419. The reversal of 13509918407 is 70481990531.

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 13509918407 - 2¹⁶ = 13509852871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13509918427) 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, 37253 + ... + 168545.

It is an arithmetic number, because the mean of its divisors is an integer number (1728748098).

Almost surely, 2^13509918407 is an apocalyptic number.

13509918407 is a deficient number, since it is larger than the sum of its proper divisors (320066377).

13509918407 is a wasteful number, since it uses less digits than its factorization.

13509918407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133729.

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 13509918407 in words is "thirteen billion, five hundred nine million, nine hundred eighteen thousand, four hundred seven".