78340505343 has 8 divisors (see below), whose sum is σ = 105057788208. Its totient is φ = 51925113024.

The previous prime is 78340505339. The next prime is 78340505351. The reversal of 78340505343 is 34350504387.

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

It is not a de Polignac number, because 78340505343 - 2² = 78340505339 is a prime.

It is a super-2 number, since 2×78340505343² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78340505295 and 78340505304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78340505303) 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, 75472030 + ... + 75473067.

It is an arithmetic number, because the mean of its divisors is an integer number (13132223526).

Almost surely, 2^78340505343 is an apocalyptic number.

78340505343 is a deficient number, since it is larger than the sum of its proper divisors (26717282865).

78340505343 is a wasteful number, since it uses less digits than its factorization.

78340505343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150945273.

The product of its (nonzero) digits is 604800, while the sum is 42.

The spelling of 78340505343 in words is "seventy-eight billion, three hundred forty million, five hundred five thousand, three hundred forty-three".