11567647481 has 8 divisors (see below), whose sum is σ = 12458765760. Its totient is φ = 10676714832.

The previous prime is 11567647387. The next prime is 11567647493. The reversal of 11567647481 is 18474676511.

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 11567647481 - 2¹⁰ = 11567646457 is a prime.

It is a super-2 number, since 2×11567647481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11567647081) 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, 100196 + ... + 182138.

It is an arithmetic number, because the mean of its divisors is an integer number (1557345720).

Almost surely, 2^11567647481 is an apocalyptic number.

It is an amenable number.

11567647481 is a deficient number, since it is larger than the sum of its proper divisors (891118279).

11567647481 is a wasteful number, since it uses less digits than its factorization.

11567647481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92815.

The product of its digits is 1128960, while the sum is 50.

The spelling of 11567647481 in words is "eleven billion, five hundred sixty-seven million, six hundred forty-seven thousand, four hundred eighty-one".