78179220343 has 8 divisors (see below), whose sum is σ = 90812396960. Its totient is φ = 65912222880.

The previous prime is 78179220319. The next prime is 78179220403. The reversal of 78179220343 is 34302297187.

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

It is not a de Polignac number, because 78179220343 - 2²¹ = 78177123191 is a prime.

It is a super-2 number, since 2×78179220343² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78179220293 and 78179220302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78179220313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91544328 + ... + 91545181.

It is an arithmetic number, because the mean of its divisors is an integer number (11351549620).

Almost surely, 2^78179220343 is an apocalyptic number.

78179220343 is a deficient number, since it is larger than the sum of its proper divisors (12633176617).

78179220343 is a wasteful number, since it uses less digits than its factorization.

78179220343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183089577.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 78179220343 in words is "seventy-eight billion, one hundred seventy-nine million, two hundred twenty thousand, three hundred forty-three".