77068371817 has 8 divisors (see below), whose sum is σ = 77587675200. Its totient is φ = 76550522160.

The previous prime is 77068371803. The next prime is 77068371823. The reversal of 77068371817 is 71817386077.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77068371817 - 2⁷ = 77068371689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77068671817) by changing a digit.

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, 256942 + ... + 469207.

It is an arithmetic number, because the mean of its divisors is an integer number (9698459400).

Almost surely, 2^77068371817 is an apocalyptic number.

It is an amenable number.

77068371817 is a deficient number, since it is larger than the sum of its proper divisors (519303383).

77068371817 is a wasteful number, since it uses less digits than its factorization.

77068371817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726863.

The product of its (nonzero) digits is 2765952, while the sum is 55.

The spelling of 77068371817 in words is "seventy-seven billion, sixty-eight million, three hundred seventy-one thousand, eight hundred seventeen".