78612411323 has 4 divisors (see below), whose sum is σ = 78613096728. Its totient is φ = 78611725920.

The previous prime is 78612411307. The next prime is 78612411343. The reversal of 78612411323 is 32311421687.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 78612411323 - 2⁴ = 78612411307 is a prime.

It is a super-2 number, since 2×78612411323² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78612411343) 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, 124238 + ... + 415523.

It is an arithmetic number, because the mean of its divisors is an integer number (19653274182).

Almost surely, 2^78612411323 is an apocalyptic number.

78612411323 is a deficient number, since it is larger than the sum of its proper divisors (685405).

78612411323 is a wasteful number, since it uses less digits than its factorization.

78612411323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685404.

The product of its digits is 48384, while the sum is 38.

The spelling of 78612411323 in words is "seventy-eight billion, six hundred twelve million, four hundred eleven thousand, three hundred twenty-three".