11530578348417 has 4 divisors (see below), whose sum is σ = 15374104464560. Its totient is φ = 7687052232276.

The previous prime is 11530578348413. The next prime is 11530578348437. The reversal of 11530578348417 is 71484387503511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11530578348417 - 2² = 11530578348413 is a prime.

It is a super-2 number, since 2×11530578348417² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11530578348413) 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 3 ways as a sum of consecutive naturals, for example, 1921763058067 + ... + 1921763058072.

It is an arithmetic number, because the mean of its divisors is an integer number (3843526116140).

Almost surely, 2^{11530578348417} is an apocalyptic number.

It is an amenable number.

11530578348417 is a deficient number, since it is larger than the sum of its proper divisors (3843526116143).

11530578348417 is an equidigital number, since it uses as much as digits as its factorization.

11530578348417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3843526116142.

The product of its (nonzero) digits is 11289600, while the sum is 57.

The spelling of 11530578348417 in words is "eleven trillion, five hundred thirty billion, five hundred seventy-eight million, three hundred forty-eight thousand, four hundred seventeen".