77130222806 has 16 divisors (see below), whose sum is σ = 142394257824. Its totient is φ = 30513055104.

The previous prime is 77130222797. The next prime is 77130222817. The reversal of 77130222806 is 60822203177.

It is a self number, because there is not a number n which added to its sum of digits gives 77130222806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211896035 + ... + 211896398.

It is an arithmetic number, because the mean of its divisors is an integer number (8899641114).

Almost surely, 2^77130222806 is an apocalyptic number.

77130222806 is a deficient number, since it is larger than the sum of its proper divisors (65264035018).

77130222806 is a wasteful number, since it uses less digits than its factorization.

77130222806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423792455.

The product of its (nonzero) digits is 56448, while the sum is 38.

The spelling of 77130222806 in words is "seventy-seven billion, one hundred thirty million, two hundred twenty-two thousand, eight hundred six".