78344713803 has 4 divisors (see below), whose sum is σ = 104459618408. Its totient is φ = 52229809200.

The previous prime is 78344713781. The next prime is 78344713813. The reversal of 78344713803 is 30831744387.

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

It is not a de Polignac number, because 78344713803 - 2⁶ = 78344713739 is a prime.

It is a super-2 number, since 2×78344713803² (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 (78344713813) 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, 13057452298 + ... + 13057452303.

It is an arithmetic number, because the mean of its divisors is an integer number (26114904602).

Almost surely, 2^78344713803 is an apocalyptic number.

78344713803 is a deficient number, since it is larger than the sum of its proper divisors (26114904605).

78344713803 is a wasteful number, since it uses less digits than its factorization.

78344713803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26114904604.

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 78344713803 in words is "seventy-eight billion, three hundred forty-four million, seven hundred thirteen thousand, eight hundred three".