53768789849 has 2 divisors, whose sum is σ = 53768789850. Its totient is φ = 53768789848.

The previous prime is 53768789843. The next prime is 53768789969. The reversal of 53768789849 is 94898786735.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30988321225 + 22780468624 = 176035^2 + 150932^2 .

It is a cyclic number.

It is not a de Polignac number, because 53768789849 - 2⁸ = 53768789593 is a prime.

It is not a weakly prime, because it can be changed into another prime (53768789843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26884394924 + 26884394925.

It is an arithmetic number, because the mean of its divisors is an integer number (26884394925).

Almost surely, 2^53768789849 is an apocalyptic number.

It is an amenable number.

53768789849 is a deficient number, since it is larger than the sum of its proper divisors (1).

53768789849 is an equidigital number, since it uses as much as digits as its factorization.

53768789849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 731566080, while the sum is 74.

The spelling of 53768789849 in words is "fifty-three billion, seven hundred sixty-eight million, seven hundred eighty-nine thousand, eight hundred forty-nine".