11878949169599 has 2 divisors, whose sum is σ = 11878949169600. Its totient is φ = 11878949169598.

The previous prime is 11878949169559. The next prime is 11878949169641. The reversal of 11878949169599 is 99596194987811.

It is a weak prime.

It is an emirp because it is prime and its reverse (99596194987811) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11878949169599 is a prime.

It is a super-2 number, since 2×11878949169599² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11878949169599.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11878949169559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5939474584799 + 5939474584800.

It is an arithmetic number, because the mean of its divisors is an integer number (5939474584800).

Almost surely, 2^{11878949169599} is an apocalyptic number.

11878949169599 is a deficient number, since it is larger than the sum of its proper divisors (1).

11878949169599 is an equidigital number, since it uses as much as digits as its factorization.

11878949169599 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3174474240, while the sum is 86.

The spelling of 11878949169599 in words is "eleven trillion, eight hundred seventy-eight billion, nine hundred forty-nine million, one hundred sixty-nine thousand, five hundred ninety-nine".