77650056105 has 16 divisors (see below), whose sum is σ = 127597930944. Its totient is φ = 40294082880.

The previous prime is 77650056073. The next prime is 77650056119. The reversal of 77650056105 is 50165005677.

It is not a de Polignac number, because 77650056105 - 2⁵ = 77650056073 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 69954451 + ... + 69955560.

It is an arithmetic number, because the mean of its divisors is an integer number (7974870684).

Almost surely, 2^77650056105 is an apocalyptic number.

It is an amenable number.

77650056105 is a deficient number, since it is larger than the sum of its proper divisors (49947874839).

77650056105 is a wasteful number, since it uses less digits than its factorization.

77650056105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139910056.

The product of its (nonzero) digits is 220500, while the sum is 42.

The spelling of 77650056105 in words is "seventy-seven billion, six hundred fifty million, fifty-six thousand, one hundred five".