11865046618933 has 2 divisors, whose sum is σ = 11865046618934. Its totient is φ = 11865046618932.

The previous prime is 11865046618891. The next prime is 11865046618969. The reversal of 11865046618933 is 33981664056811.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10802048502609 + 1062998116324 = 3286647^2 + 1031018^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11865046618933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11865046618973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5932523309466 + 5932523309467.

It is an arithmetic number, because the mean of its divisors is an integer number (5932523309467).

Almost surely, 2^{11865046618933} is an apocalyptic number.

It is an amenable number.

11865046618933 is a deficient number, since it is larger than the sum of its proper divisors (1).

11865046618933 is an equidigital number, since it uses as much as digits as its factorization.

11865046618933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22394880, while the sum is 61.

The spelling of 11865046618933 in words is "eleven trillion, eight hundred sixty-five billion, forty-six million, six hundred eighteen thousand, nine hundred thirty-three".