10505004977 has 2 divisors, whose sum is σ = 10505004978. Its totient is φ = 10505004976.

The previous prime is 10505004971. The next prime is 10505005087. The reversal of 10505004977 is 77940050501.

10505004977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8506557361 + 1998447616 = 92231^2 + 44704^2 .

It is a cyclic number.

It is not a de Polignac number, because 10505004977 - 2⁸ = 10505004721 is a prime.

It is a super-2 number, since 2×10505004977² (a number of 21 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 10505004977.

It is not a weakly prime, because it can be changed into another prime (10505004971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5252502488 + 5252502489.

It is an arithmetic number, because the mean of its divisors is an integer number (5252502489).

Almost surely, 2^10505004977 is an apocalyptic number.

It is an amenable number.

10505004977 is a deficient number, since it is larger than the sum of its proper divisors (1).

10505004977 is an equidigital number, since it uses as much as digits as its factorization.

10505004977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44100, while the sum is 38.

The spelling of 10505004977 in words is "ten billion, five hundred five million, four thousand, nine hundred seventy-seven".