78873935673 has 16 divisors (see below), whose sum is σ = 118179008640. Its totient is φ = 46427466624.

The previous prime is 78873935633. The next prime is 78873935711. The reversal of 78873935673 is 37653937887.

It is not a de Polignac number, because 78873935673 - 2¹⁰ = 78873934649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78873935603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43964508 + ... + 43966301.

It is an arithmetic number, because the mean of its divisors is an integer number (7386188040).

Almost surely, 2^78873935673 is an apocalyptic number.

It is an amenable number.

78873935673 is a deficient number, since it is larger than the sum of its proper divisors (39305072967).

78873935673 is a wasteful number, since it uses less digits than its factorization.

78873935673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87930848.

The product of its digits is 160030080, while the sum is 66.

The spelling of 78873935673 in words is "seventy-eight billion, eight hundred seventy-three million, nine hundred thirty-five thousand, six hundred seventy-three".