78741231713 has 4 divisors (see below), whose sum is σ = 78745067520. Its totient is φ = 78737395908.

The previous prime is 78741231697. The next prime is 78741231719. The reversal of 78741231713 is 31713214787.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78741231713 - 2⁴ = 78741231697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78741231719) 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, 1886945 + ... + 1928222.

It is an arithmetic number, because the mean of its divisors is an integer number (19686266880).

Almost surely, 2^78741231713 is an apocalyptic number.

It is an amenable number.

78741231713 is a deficient number, since it is larger than the sum of its proper divisors (3835807).

78741231713 is a wasteful number, since it uses less digits than its factorization.

78741231713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3835806.

The product of its digits is 197568, while the sum is 44.

The spelling of 78741231713 in words is "seventy-eight billion, seven hundred forty-one million, two hundred thirty-one thousand, seven hundred thirteen".