11570872261 has 8 divisors (see below), whose sum is σ = 12672142560. Its totient is φ = 10499773872.

The previous prime is 11570872241. The next prime is 11570872283. The reversal of 11570872261 is 16227807511.

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 11570872261 - 2⁷ = 11570872133 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 (11570872241) 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, 7542175 + ... + 7543708.

It is an arithmetic number, because the mean of its divisors is an integer number (1584017820).

Almost surely, 2^11570872261 is an apocalyptic number.

It is an amenable number.

11570872261 is a deficient number, since it is larger than the sum of its proper divisors (1101270299).

11570872261 is a wasteful number, since it uses less digits than its factorization.

11570872261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15085955.

The product of its (nonzero) digits is 47040, while the sum is 40.

The spelling of 11570872261 in words is "eleven billion, five hundred seventy million, eight hundred seventy-two thousand, two hundred sixty-one".