78810017713 has 16 divisors (see below), whose sum is σ = 91122071040. Its totient is φ = 66762026496.

The previous prime is 78810017701. The next prime is 78810017731. The reversal of 78810017713 is 31771001887.

It is a cyclic number.

It is not a de Polignac number, because 78810017713 - 2¹⁷ = 78809886641 is a prime.

It is a super-2 number, since 2×78810017713² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78810017713.

It is not an unprimeable number, because it can be changed into a prime (78810017213) 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, 1397145 + ... + 1452457.

It is an arithmetic number, because the mean of its divisors is an integer number (5695129440).

Almost surely, 2^78810017713 is an apocalyptic number.

It is an amenable number.

78810017713 is a deficient number, since it is larger than the sum of its proper divisors (12312053327).

78810017713 is a wasteful number, since it uses less digits than its factorization.

78810017713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57696.

The product of its (nonzero) digits is 65856, while the sum is 43.

The spelling of 78810017713 in words is "seventy-eight billion, eight hundred ten million, seventeen thousand, seven hundred thirteen".