11581798967 has 4 divisors (see below), whose sum is σ = 11588281896. Its totient is φ = 11575316040.

The previous prime is 11581798961. The next prime is 11581798979. The reversal of 11581798967 is 76989718511.

11581798967 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11581798967 - 2²⁴ = 11565021751 is a prime.

It is a super-4 number, since 4×11581798967⁴ (a number of 41 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11581798961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3238784 + ... + 3242357.

It is an arithmetic number, because the mean of its divisors is an integer number (2897070474).

Almost surely, 2^11581798967 is an apocalyptic number.

11581798967 is a deficient number, since it is larger than the sum of its proper divisors (6482929).

11581798967 is an equidigital number, since it uses as much as digits as its factorization.

11581798967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6482928.

The product of its digits is 7620480, while the sum is 62.

The spelling of 11581798967 in words is "eleven billion, five hundred eighty-one million, seven hundred ninety-eight thousand, nine hundred sixty-seven".