11818942515041 has 4 divisors (see below), whose sum is σ = 11968549382400. Its totient is φ = 11669335647684.

The previous prime is 11818942515011. The next prime is 11818942515049. The reversal of 11818942515041 is 14051524981811.

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 a cyclic number.

It is not a de Polignac number, because 11818942515041 - 2²² = 11818938320737 is a prime.

It is a super-2 number, since 2×11818942515041² (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 (11818942515049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74803433561 + ... + 74803433718.

It is an arithmetic number, because the mean of its divisors is an integer number (2992137345600).

Almost surely, 2^{11818942515041} is an apocalyptic number.

It is an amenable number.

11818942515041 is a deficient number, since it is larger than the sum of its proper divisors (149606867359).

11818942515041 is an equidigital number, since it uses as much as digits as its factorization.

11818942515041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149606867358.

The product of its (nonzero) digits is 460800, while the sum is 50.

The spelling of 11818942515041 in words is "eleven trillion, eight hundred eighteen billion, nine hundred forty-two million, five hundred fifteen thousand, forty-one".