10728887761 has 2 divisors, whose sum is σ = 10728887762. Its totient is φ = 10728887760.

The previous prime is 10728887707. The next prime is 10728887783. The reversal of 10728887761 is 16778882701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10013004225 + 715883536 = 100065^2 + 26756^2 .

It is a cyclic number.

It is not a de Polignac number, because 10728887761 - 2²⁷ = 10594670033 is a prime.

It is not a weakly prime, because it can be changed into another prime (10728887261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5364443880 + 5364443881.

It is an arithmetic number, because the mean of its divisors is an integer number (5364443881).

Almost surely, 2^10728887761 is an apocalyptic number.

It is an amenable number.

10728887761 is a deficient number, since it is larger than the sum of its proper divisors (1).

10728887761 is an equidigital number, since it uses as much as digits as its factorization.

10728887761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2107392, while the sum is 55.

The spelling of 10728887761 in words is "ten billion, seven hundred twenty-eight million, eight hundred eighty-seven thousand, seven hundred sixty-one".