10919999977 has 2 divisors, whose sum is σ = 10919999978. Its totient is φ = 10919999976.

The previous prime is 10919999957. The next prime is 10920000011. The reversal of 10919999977 is 77999991901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7539275241 + 3380724736 = 86829^2 + 58144^2 .

It is a cyclic number.

It is not a de Polignac number, because 10919999977 - 2¹⁹ = 10919475689 is a prime.

It is not a weakly prime, because it can be changed into another prime (10919999947) 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, 5459999988 + 5459999989.

It is an arithmetic number, because the mean of its divisors is an integer number (5459999989).

Almost surely, 2^10919999977 is an apocalyptic number.

It is an amenable number.

10919999977 is a deficient number, since it is larger than the sum of its proper divisors (1).

10919999977 is an equidigital number, since it uses as much as digits as its factorization.

10919999977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26040609, while the sum is 70.

The spelling of 10919999977 in words is "ten billion, nine hundred nineteen million, nine hundred ninety-nine thousand, nine hundred seventy-seven".