80834636677 has 2 divisors, whose sum is σ = 80834636678. Its totient is φ = 80834636676.

The previous prime is 80834636599. The next prime is 80834636681. The reversal of 80834636677 is 77663643808.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77581189156 + 3253447521 = 278534^2 + 57039^2 .

It is a cyclic number.

It is not a de Polignac number, because 80834636677 - 2¹⁵ = 80834603909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80834636777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40417318338 + 40417318339.

It is an arithmetic number, because the mean of its divisors is an integer number (40417318339).

Almost surely, 2^80834636677 is an apocalyptic number.

It is an amenable number.

80834636677 is a deficient number, since it is larger than the sum of its proper divisors (1).

80834636677 is an equidigital number, since it uses as much as digits as its factorization.

80834636677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24385536, while the sum is 58.

The spelling of 80834636677 in words is "eighty billion, eight hundred thirty-four million, six hundred thirty-six thousand, six hundred seventy-seven".