77282434673 has 4 divisors (see below), whose sum is σ = 81828460260. Its totient is φ = 72736409088.

The previous prime is 77282434627. The next prime is 77282434679. The reversal of 77282434673 is 37643428277.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35123257744 + 42159176929 = 187412^2 + 205327^2 .

It is a cyclic number.

It is not a de Polignac number, because 77282434673 - 2⁶ = 77282434609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77282434679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2273012768 + ... + 2273012801.

It is an arithmetic number, because the mean of its divisors is an integer number (20457115065).

Almost surely, 2^77282434673 is an apocalyptic number.

It is an amenable number.

77282434673 is a deficient number, since it is larger than the sum of its proper divisors (4546025587).

77282434673 is a wasteful number, since it uses less digits than its factorization.

77282434673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4546025586.

The product of its digits is 9483264, while the sum is 53.

The spelling of 77282434673 in words is "seventy-seven billion, two hundred eighty-two million, four hundred thirty-four thousand, six hundred seventy-three".