80828552617 has 2 divisors, whose sum is σ = 80828552618. Its totient is φ = 80828552616.

The previous prime is 80828552561. The next prime is 80828552621. The reversal of 80828552617 is 71625582808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73604232601 + 7224320016 = 271301^2 + 84996^2 .

It is a cyclic number.

It is not a de Polignac number, because 80828552617 - 2¹⁹ = 80828028329 is a prime.

It is not a weakly prime, because it can be changed into another prime (80828552687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40414276308 + 40414276309.

It is an arithmetic number, because the mean of its divisors is an integer number (40414276309).

Almost surely, 2^80828552617 is an apocalyptic number.

It is an amenable number.

80828552617 is a deficient number, since it is larger than the sum of its proper divisors (1).

80828552617 is an equidigital number, since it uses as much as digits as its factorization.

80828552617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2150400, while the sum is 52.

The spelling of 80828552617 in words is "eighty billion, eight hundred twenty-eight million, five hundred fifty-two thousand, six hundred seventeen".