77059616045 has 4 divisors (see below), whose sum is σ = 92471539260. Its totient is φ = 61647692832.

The previous prime is 77059616027. The next prime is 77059616057. The reversal of 77059616045 is 54061695077.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54061695077 = 13 ⋅4158591929.

It can be written as a sum of positive squares in 2 ways, for example, as 8584763716 + 68474852329 = 92654^2 + 261677^2 .

It is a cyclic number.

It is not a de Polignac number, because 77059616045 - 2¹⁰ = 77059615021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77059615984 and 77059616002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7705961600 + ... + 7705961609.

It is an arithmetic number, because the mean of its divisors is an integer number (23117884815).

Almost surely, 2^77059616045 is an apocalyptic number.

It is an amenable number.

77059616045 is a deficient number, since it is larger than the sum of its proper divisors (15411923215).

77059616045 is a wasteful number, since it uses less digits than its factorization.

77059616045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15411923214.

The product of its (nonzero) digits is 1587600, while the sum is 50.

The spelling of 77059616045 in words is "seventy-seven billion, fifty-nine million, six hundred sixteen thousand, forty-five".