78567613868086 has 32 divisors (see below), whose sum is σ = 135213473897280. Its totient is φ = 33540304551936.

The previous prime is 78567613868069. The next prime is 78567613868087. The reversal of 78567613868086 is 68086831676587.

It is a junction number, because it is equal to n+sod(n) for n = 78567613867997 and 78567613868015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78567613868087) 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, 323371146 + ... + 323614018.

It is an arithmetic number, because the mean of its divisors is an integer number (4225421059290).

Almost surely, 2^{78567613868086} is an apocalyptic number.

78567613868086 is a deficient number, since it is larger than the sum of its proper divisors (56645860029194).

78567613868086 is a wasteful number, since it uses less digits than its factorization.

78567613868086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333048.

The product of its (nonzero) digits is 3901685760, while the sum is 79.

The spelling of 78567613868086 in words is "seventy-eight trillion, five hundred sixty-seven billion, six hundred thirteen million, eight hundred sixty-eight thousand, eighty-six".