78005131223 has 8 divisors (see below), whose sum is σ = 79808972256. Its totient is φ = 76218228000.

The previous prime is 78005131207. The next prime is 78005131229. The reversal of 78005131223 is 32213150087.

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

It is a cyclic number.

It is not a de Polignac number, because 78005131223 - 2⁴ = 78005131207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78005131223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78005131229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4225136 + ... + 4243557.

It is an arithmetic number, because the mean of its divisors is an integer number (9976121532).

Almost surely, 2^78005131223 is an apocalyptic number.

78005131223 is a deficient number, since it is larger than the sum of its proper divisors (1803841033).

78005131223 is a wasteful number, since it uses less digits than its factorization.

78005131223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8468905.

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 78005131223 in words is "seventy-eight billion, five million, one hundred thirty-one thousand, two hundred twenty-three".