78673644303 has 4 divisors (see below), whose sum is σ = 104898192408. Its totient is φ = 52449096200.

The previous prime is 78673644271. The next prime is 78673644311. The reversal of 78673644303 is 30344637687.

It is a happy number.

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 78673644303 - 2⁵ = 78673644271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78673644383) 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, 13112274048 + ... + 13112274053.

It is an arithmetic number, because the mean of its divisors is an integer number (26224548102).

Almost surely, 2^78673644303 is an apocalyptic number.

78673644303 is a deficient number, since it is larger than the sum of its proper divisors (26224548105).

78673644303 is a wasteful number, since it uses less digits than its factorization.

78673644303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26224548104.

The product of its (nonzero) digits is 6096384, while the sum is 51.

The spelling of 78673644303 in words is "seventy-eight billion, six hundred seventy-three million, six hundred forty-four thousand, three hundred three".