78454822343 has 4 divisors (see below), whose sum is σ = 79447921440. Its totient is φ = 77461723248.

The previous prime is 78454822307. The next prime is 78454822349. The reversal of 78454822343 is 34322845487.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78454822343 - 2⁶ = 78454822279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78454822291 and 78454822300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78454822349) 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, 496549430 + ... + 496549587.

It is an arithmetic number, because the mean of its divisors is an integer number (19861980360).

Almost surely, 2^78454822343 is an apocalyptic number.

78454822343 is a deficient number, since it is larger than the sum of its proper divisors (993099097).

78454822343 is an equidigital number, since it uses as much as digits as its factorization.

78454822343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993099096.

The product of its digits is 5160960, while the sum is 50.

The spelling of 78454822343 in words is "seventy-eight billion, four hundred fifty-four million, eight hundred twenty-two thousand, three hundred forty-three".