11010978887 has 2 divisors, whose sum is σ = 11010978888. Its totient is φ = 11010978886.

The previous prime is 11010978859. The next prime is 11010978919. The reversal of 11010978887 is 78887901011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11010978887 - 2⁸ = 11010978631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11010971887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505489443 + 5505489444.

It is an arithmetic number, because the mean of its divisors is an integer number (5505489444).

Almost surely, 2^11010978887 is an apocalyptic number.

11010978887 is a deficient number, since it is larger than the sum of its proper divisors (1).

11010978887 is an equidigital number, since it uses as much as digits as its factorization.

11010978887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225792, while the sum is 50.

The spelling of 11010978887 in words is "eleven billion, ten million, nine hundred seventy-eight thousand, eight hundred eighty-seven".