78466708444685 has 16 divisors (see below), whose sum is σ = 103779024334272. Its totient is φ = 56478380582400.

The previous prime is 78466708444673. The next prime is 78466708444753. The reversal of 78466708444685 is 58644480766487.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-78466708444685 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7353950471 + ... + 7353961140.

It is an arithmetic number, because the mean of its divisors is an integer number (6486189020892).

Almost surely, 2^{78466708444685} is an apocalyptic number.

It is an amenable number.

78466708444685 is a deficient number, since it is larger than the sum of its proper divisors (25312315889587).

78466708444685 is a wasteful number, since it uses less digits than its factorization.

78466708444685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14707911724.

The product of its (nonzero) digits is 6936330240, while the sum is 77.

The spelling of 78466708444685 in words is "seventy-eight trillion, four hundred sixty-six billion, seven hundred eight million, four hundred forty-four thousand, six hundred eighty-five".