77826346066 has 16 divisors (see below), whose sum is σ = 133423347456. Its totient is φ = 33352459776.

The previous prime is 77826346057. The next prime is 77826346093. The reversal of 77826346066 is 66064362877.

It is a junction number, because it is equal to n+sod(n) for n = 77826345998 and 77826346016.

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 7 ways as a sum of consecutive naturals, for example, 169255 + ... + 429301.

It is an arithmetic number, because the mean of its divisors is an integer number (8338959216).

Almost surely, 2^77826346066 is an apocalyptic number.

77826346066 is a deficient number, since it is larger than the sum of its proper divisors (55597001390).

77826346066 is a wasteful number, since it uses less digits than its factorization.

77826346066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281433.

The product of its (nonzero) digits is 12192768, while the sum is 55.

The spelling of 77826346066 in words is "seventy-seven billion, eight hundred twenty-six million, three hundred forty-six thousand, sixty-six".