78841669713 has 16 divisors (see below), whose sum is σ = 107397820416. Its totient is φ = 51433707600.

The previous prime is 78841669703. The next prime is 78841669741. The reversal of 78841669713 is 31796614887.

It is not a de Polignac number, because 78841669713 - 2⁹ = 78841669201 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78841669703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1268481 + ... + 1329182.

It is an arithmetic number, because the mean of its divisors is an integer number (6712363776).

Almost surely, 2^78841669713 is an apocalyptic number.

It is an amenable number.

78841669713 is a deficient number, since it is larger than the sum of its proper divisors (28556150703).

78841669713 is a wasteful number, since it uses less digits than its factorization.

78841669713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2597884.

The product of its digits is 12192768, while the sum is 60.

The spelling of 78841669713 in words is "seventy-eight billion, eight hundred forty-one million, six hundred sixty-nine thousand, seven hundred thirteen".