75564642863 has 2 divisors, whose sum is σ = 75564642864. Its totient is φ = 75564642862.

The previous prime is 75564642851. The next prime is 75564642869. The reversal of 75564642863 is 36824646557.

It is a strong prime.

It is an emirp because it is prime and its reverse (36824646557) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75564642863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 75564642799 and 75564642808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75564642869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37782321431 + 37782321432.

It is an arithmetic number, because the mean of its divisors is an integer number (37782321432).

Almost surely, 2^75564642863 is an apocalyptic number.

75564642863 is a deficient number, since it is larger than the sum of its proper divisors (1).

75564642863 is an equidigital number, since it uses as much as digits as its factorization.

75564642863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29030400, while the sum is 56.

The spelling of 75564642863 in words is "seventy-five billion, five hundred sixty-four million, six hundred forty-two thousand, eight hundred sixty-three".