11390865979 has 2 divisors, whose sum is σ = 11390865980. Its totient is φ = 11390865978.

The previous prime is 11390865977. The next prime is 11390866013. The reversal of 11390865979 is 97956809311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11390865979 - 2¹ = 11390865977 is a prime.

Together with 11390865977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11390865971) 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 as a sum of consecutive naturals, namely, 5695432989 + 5695432990.

It is an arithmetic number, because the mean of its divisors is an integer number (5695432990).

Almost surely, 2^11390865979 is an apocalyptic number.

11390865979 is a deficient number, since it is larger than the sum of its proper divisors (1).

11390865979 is an equidigital number, since it uses as much as digits as its factorization.

11390865979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3674160, while the sum is 58.

The spelling of 11390865979 in words is "eleven billion, three hundred ninety million, eight hundred sixty-five thousand, nine hundred seventy-nine".