78286328583 has 16 divisors (see below), whose sum is σ = 105260924160. Its totient is φ = 51752225664.

The previous prime is 78286328581. The next prime is 78286328597. The reversal of 78286328583 is 38582368287.

It is a happy number.

It is not a de Polignac number, because 78286328583 - 2¹ = 78286328581 is a prime.

It is a super-2 number, since 2×78286328583² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78286328581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229135 + ... + 457247.

It is an arithmetic number, because the mean of its divisors is an integer number (6578807760).

Almost surely, 2^78286328583 is an apocalyptic number.

78286328583 is a deficient number, since it is larger than the sum of its proper divisors (26974595577).

78286328583 is a wasteful number, since it uses less digits than its factorization.

78286328583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229078.

The product of its digits is 30965760, while the sum is 60.

The spelling of 78286328583 in words is "seventy-eight billion, two hundred eighty-six million, three hundred twenty-eight thousand, five hundred eighty-three".