78036310285817 has 16 divisors (see below), whose sum is σ = 85103534880000. Its totient is φ = 71121161165184.

The previous prime is 78036310285793. The next prime is 78036310285867. The reversal of 78036310285817 is 71858201363087.

It is not a de Polignac number, because 78036310285817 - 2⁶ = 78036310285753 is a prime.

It is a super-2 number, since 2×78036310285817² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78036310285867) 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, 209629109 + ... + 210001037.

It is an arithmetic number, because the mean of its divisors is an integer number (5318970930000).

Almost surely, 2^{78036310285817} is an apocalyptic number.

It is an amenable number.

78036310285817 is a deficient number, since it is larger than the sum of its proper divisors (7067224594183).

78036310285817 is a wasteful number, since it uses less digits than its factorization.

78036310285817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576320.

The product of its (nonzero) digits is 13547520, while the sum is 59.

The spelling of 78036310285817 in words is "seventy-eight trillion, thirty-six billion, three hundred ten million, two hundred eighty-five thousand, eight hundred seventeen".