78159882382 has 8 divisors (see below), whose sum is σ = 121282576200. Its totient is φ = 37732356984.

The previous prime is 78159882379. The next prime is 78159882389. The reversal of 78159882382 is 28328895187.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78159882382² (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 78159882382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78159882389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673792032 + ... + 673792147.

It is an arithmetic number, because the mean of its divisors is an integer number (15160322025).

Almost surely, 2^78159882382 is an apocalyptic number.

78159882382 is a deficient number, since it is larger than the sum of its proper divisors (43122693818).

78159882382 is a wasteful number, since it uses less digits than its factorization.

78159882382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347584210.

The product of its digits is 15482880, while the sum is 61.

The spelling of 78159882382 in words is "seventy-eight billion, one hundred fifty-nine million, eight hundred eighty-two thousand, three hundred eighty-two".