80728520053 has 2 divisors, whose sum is σ = 80728520054. Its totient is φ = 80728520052.

The previous prime is 80728520051. The next prime is 80728520057. The reversal of 80728520053 is 35002582708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50616900324 + 30111619729 = 224982^2 + 173527^2 .

It is a cyclic number.

It is not a de Polignac number, because 80728520053 - 2¹ = 80728520051 is a prime.

Together with 80728520051, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 80728519988 and 80728520015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80728520051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40364260026 + 40364260027.

It is an arithmetic number, because the mean of its divisors is an integer number (40364260027).

Almost surely, 2^80728520053 is an apocalyptic number.

It is an amenable number.

80728520053 is a deficient number, since it is larger than the sum of its proper divisors (1).

80728520053 is an equidigital number, since it uses as much as digits as its factorization.

80728520053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 80728520053 in words is "eighty billion, seven hundred twenty-eight million, five hundred twenty thousand, fifty-three".