78826845652185 has 64 divisors (see below), whose sum is σ = 133659694080000. Its totient is φ = 39558724450560.

The previous prime is 78826845652183. The next prime is 78826845652249. The reversal of 78826845652185 is 58125654862887.

It is not a de Polignac number, because 78826845652185 - 2¹ = 78826845652183 is a prime.

It is a Smith number, since the sum of its digits (75) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (78826845652183) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 930408256 + ... + 930492974.

It is an arithmetic number, because the mean of its divisors is an integer number (2088432720000).

Almost surely, 2^{78826845652185} is an apocalyptic number.

It is an amenable number.

78826845652185 is a deficient number, since it is larger than the sum of its proper divisors (54832848427815).

78826845652185 is a wasteful number, since it uses less digits than its factorization.

78826845652185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106806.

The product of its digits is 2064384000, while the sum is 75.

The spelling of 78826845652185 in words is "seventy-eight trillion, eight hundred twenty-six billion, eight hundred forty-five million, six hundred fifty-two thousand, one hundred eighty-five".