13215527261 has 8 divisors (see below), whose sum is σ = 13651093248. Its totient is φ = 12780540000.

The previous prime is 13215527231. The next prime is 13215527279. The reversal of 13215527261 is 16272551231.

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-13215527261 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 (13215527231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98015 + ... + 189836.

It is an arithmetic number, because the mean of its divisors is an integer number (1706386656).

Almost surely, 2^13215527261 is an apocalyptic number.

It is an amenable number.

13215527261 is a deficient number, since it is larger than the sum of its proper divisors (435565987).

13215527261 is a wasteful number, since it uses less digits than its factorization.

13215527261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289363.

The product of its digits is 25200, while the sum is 35.

The spelling of 13215527261 in words is "thirteen billion, two hundred fifteen million, five hundred twenty-seven thousand, two hundred sixty-one".