78467844684613 has 32 divisors (see below), whose sum is σ = 80844380507520. Its totient is φ = 76136545382400.

The previous prime is 78467844684599. The next prime is 78467844684659. The reversal of 78467844684613 is 31648644876487.

It is a cyclic number.

It is not a de Polignac number, because 78467844684613 - 2¹³ = 78467844676421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78467844684613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78467844684683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6829817973 + ... + 6829829461.

It is an arithmetic number, because the mean of its divisors is an integer number (2526386890860).

Almost surely, 2^{78467844684613} is an apocalyptic number.

78467844684613 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

78467844684613 is a deficient number, since it is larger than the sum of its proper divisors (2376535822907).

78467844684613 is a wasteful number, since it uses less digits than its factorization.

78467844684613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17509.

The product of its digits is 4161798144, while the sum is 76.

The spelling of 78467844684613 in words is "seventy-eight trillion, four hundred sixty-seven billion, eight hundred forty-four million, six hundred eighty-four thousand, six hundred thirteen".