80828056357 has 2 divisors, whose sum is σ = 80828056358. Its totient is φ = 80828056356.

The previous prime is 80828056349. The next prime is 80828056399. The reversal of 80828056357 is 75365082808.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52695038916 + 28133017441 = 229554^2 + 167729^2 .

It is a cyclic number.

It is not a de Polignac number, because 80828056357 - 2³ = 80828056349 is a prime.

It is a super-2 number, since 2×80828056357² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80828056157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40414028178 + 40414028179.

It is an arithmetic number, because the mean of its divisors is an integer number (40414028179).

Almost surely, 2^80828056357 is an apocalyptic number.

It is an amenable number.

80828056357 is a deficient number, since it is larger than the sum of its proper divisors (1).

80828056357 is an equidigital number, since it uses as much as digits as its factorization.

80828056357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 80828056357 in words is "eighty billion, eight hundred twenty-eight million, fifty-six thousand, three hundred fifty-seven".