78563419153 has 2 divisors, whose sum is σ = 78563419154. Its totient is φ = 78563419152.

The previous prime is 78563419127. The next prime is 78563419211. The reversal of 78563419153 is 35191436587.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77847696144 + 715723009 = 279012^2 + 26753^2 .

It is a cyclic number.

It is not a de Polignac number, because 78563419153 - 2³³ = 69973484561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78563419153.

It is not a weakly prime, because it can be changed into another prime (78563419453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39281709576 + 39281709577.

It is an arithmetic number, because the mean of its divisors is an integer number (39281709577).

Almost surely, 2^78563419153 is an apocalyptic number.

It is an amenable number.

78563419153 is a deficient number, since it is larger than the sum of its proper divisors (1).

78563419153 is an equidigital number, since it uses as much as digits as its factorization.

78563419153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2721600, while the sum is 52.

The spelling of 78563419153 in words is "seventy-eight billion, five hundred sixty-three million, four hundred nineteen thousand, one hundred fifty-three".