77694049677 has 16 divisors (see below), whose sum is σ = 106941381120. Its totient is φ = 50121614400.

The previous prime is 77694049673. The next prime is 77694049691.

77694049677 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 77694049677 - 2² = 77694049673 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77694049673) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2071027 + ... + 2108207.

It is an arithmetic number, because the mean of its divisors is an integer number (6683836320).

Almost surely, 2^77694049677 is an apocalyptic number.

It is an amenable number.

77694049677 is a deficient number, since it is larger than the sum of its proper divisors (29247331443).

77694049677 is a wasteful number, since it uses less digits than its factorization.

77694049677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59684.

The product of its (nonzero) digits is 112021056, while the sum is 66.

The spelling of 77694049677 in words is "seventy-seven billion, six hundred ninety-four million, forty-nine thousand, six hundred seventy-seven".