80777800333793 has 2 divisors, whose sum is σ = 80777800333794. Its totient is φ = 80777800333792.

The previous prime is 80777800333729. The next prime is 80777800333823. The reversal of 80777800333793 is 39733300877708.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56862639095824 + 23915161237969 = 7540732^2 + 4890313^2 .

It is a cyclic number.

It is not a de Polignac number, because 80777800333793 - 2⁶ = 80777800333729 is a prime.

It is a super-2 number, since 2×80777800333793² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80777800332793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40388900166896 + 40388900166897.

It is an arithmetic number, because the mean of its divisors is an integer number (40388900166897).

Almost surely, 2^{80777800333793} is an apocalyptic number.

It is an amenable number.

80777800333793 is a deficient number, since it is larger than the sum of its proper divisors (1).

80777800333793 is an equidigital number, since it uses as much as digits as its factorization.

80777800333793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112021056, while the sum is 65.

The spelling of 80777800333793 in words is "eighty trillion, seven hundred seventy-seven billion, eight hundred million, three hundred thirty-three thousand, seven hundred ninety-three".