13506691297 has 8 divisors (see below), whose sum is σ = 14822805312. Its totient is φ = 12205282800.

The previous prime is 13506691207. The next prime is 13506691321. The reversal of 13506691297 is 79219660531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13506691297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13506691297.

It is not an unprimeable number, because it can be changed into a prime (13506691207) 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, 3674454 + ... + 3678127.

It is an arithmetic number, because the mean of its divisors is an integer number (1852850664).

Almost surely, 2^13506691297 is an apocalyptic number.

It is an amenable number.

13506691297 is a deficient number, since it is larger than the sum of its proper divisors (1316114015).

13506691297 is a wasteful number, since it uses less digits than its factorization.

13506691297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7352759.

The product of its (nonzero) digits is 612360, while the sum is 49.

The spelling of 13506691297 in words is "thirteen billion, five hundred six million, six hundred ninety-one thousand, two hundred ninety-seven".