77473642886 has 16 divisors (see below), whose sum is σ = 119188571040. Its totient is φ = 37746400320.

The previous prime is 77473642861. The next prime is 77473642969. The reversal of 77473642886 is 68824637477.

It is a happy number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 501866 + ... + 637821.

It is an arithmetic number, because the mean of its divisors is an integer number (7449285690).

Almost surely, 2^77473642886 is an apocalyptic number.

77473642886 is a deficient number, since it is larger than the sum of its proper divisors (41714928154).

77473642886 is a wasteful number, since it uses less digits than its factorization.

77473642886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140559.

The product of its digits is 75866112, while the sum is 62.

The spelling of 77473642886 in words is "seventy-seven billion, four hundred seventy-three million, six hundred forty-two thousand, eight hundred eighty-six".