11178196993 has 2 divisors, whose sum is σ = 11178196994. Its totient is φ = 11178196992.

The previous prime is 11178196963. The next prime is 11178197029. The reversal of 11178196993 is 39969187111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9275230864 + 1902966129 = 96308^2 + 43623^2 .

It is a cyclic number.

It is not a de Polignac number, because 11178196993 - 2⁹ = 11178196481 is a prime.

It is not a weakly prime, because it can be changed into another prime (11178196963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5589098496 + 5589098497.

It is an arithmetic number, because the mean of its divisors is an integer number (5589098497).

Almost surely, 2^11178196993 is an apocalyptic number.

It is an amenable number.

11178196993 is a deficient number, since it is larger than the sum of its proper divisors (1).

11178196993 is an equidigital number, since it uses as much as digits as its factorization.

11178196993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 55.

The spelling of 11178196993 in words is "eleven billion, one hundred seventy-eight million, one hundred ninety-six thousand, nine hundred ninety-three".