78782658044683 has 4 divisors (see below), whose sum is σ = 78832425991968. Its totient is φ = 78732890097400.

The previous prime is 78782658044633. The next prime is 78782658044743. The reversal of 78782658044683 is 38644085628787.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78782658044683 is a prime.

It is a Smith number, since the sum of its digits (76) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78782658044633) 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, 24883971268 + ... + 24883974433.

It is an arithmetic number, because the mean of its divisors is an integer number (19708106497992).

Almost surely, 2^{78782658044683} is an apocalyptic number.

78782658044683 is a deficient number, since it is larger than the sum of its proper divisors (49767947285).

78782658044683 is a wasteful number, since it uses less digits than its factorization.

78782658044683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49767947284.

The product of its (nonzero) digits is 3468165120, while the sum is 76.

The spelling of 78782658044683 in words is "seventy-eight trillion, seven hundred eighty-two billion, six hundred fifty-eight million, forty-four thousand, six hundred eighty-three".