78328143258 has 32 divisors (see below), whose sum is σ = 164643494400. Its totient is φ = 24794514096.

The previous prime is 78328143251. The next prime is 78328143259. The reversal of 78328143258 is 85234182387.

It is a super-2 number, since 2×78328143258² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78328143258.

It is not an unprimeable number, because it can be changed into a prime (78328143251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2022528 + ... + 2060891.

It is an arithmetic number, because the mean of its divisors is an integer number (5145109200).

Almost surely, 2^78328143258 is an apocalyptic number.

78328143258 is an abundant number, since it is smaller than the sum of its proper divisors (86315351142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78328143258 is a wasteful number, since it uses less digits than its factorization.

78328143258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4083586.

The product of its digits is 2580480, while the sum is 51.

The spelling of 78328143258 in words is "seventy-eight billion, three hundred twenty-eight million, one hundred forty-three thousand, two hundred fifty-eight".