80808074649 has 6 divisors (see below), whose sum is σ = 116722774506. Its totient is φ = 53872049760.

The previous prime is 80808074623. The next prime is 80808074707. The reversal of 80808074649 is 94647080808.

It can be written as a sum of positive squares in only one way, i.e., 79133628249 + 1674446400 = 281307^2 + 40920^2 .

It is not a de Polignac number, because 80808074649 - 2¹³ = 80808066457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80808074595 and 80808074604.

It is not an unprimeable number, because it can be changed into a prime (80808074749) 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 in 5 ways as a sum of consecutive naturals, for example, 4489337472 + ... + 4489337489.

It is an arithmetic number, because the mean of its divisors is an integer number (19453795751).

Almost surely, 2^80808074649 is an apocalyptic number.

It is an amenable number.

80808074649 is a deficient number, since it is larger than the sum of its proper divisors (35914699857).

80808074649 is a wasteful number, since it uses less digits than its factorization.

80808074649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8978674967 (or 8978674964 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The spelling of 80808074649 in words is "eighty billion, eight hundred eight million, seventy-four thousand, six hundred forty-nine".