78571442873 has 16 divisors (see below), whose sum is σ = 98369095680. Its totient is φ = 60968317200.

The previous prime is 78571442861. The next prime is 78571442891. The reversal of 78571442873 is 37824417587.

It is not a de Polignac number, because 78571442873 - 2¹⁸ = 78571180729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78571442473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2116343 + ... + 2153148.

It is an arithmetic number, because the mean of its divisors is an integer number (6148068480).

Almost surely, 2^78571442873 is an apocalyptic number.

It is an amenable number.

78571442873 is a deficient number, since it is larger than the sum of its proper divisors (19797652807).

78571442873 is a wasteful number, since it uses less digits than its factorization.

78571442873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4269748.

The product of its digits is 10536960, while the sum is 56.

The spelling of 78571442873 in words is "seventy-eight billion, five hundred seventy-one million, four hundred forty-two thousand, eight hundred seventy-three".