78853575039 has 4 divisors (see below), whose sum is σ = 105138100056. Its totient is φ = 52569050024.

The previous prime is 78853575037. The next prime is 78853575109. The reversal of 78853575039 is 93057535887.

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 78853575039 - 2¹ = 78853575037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78853575037) 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 3 ways as a sum of consecutive naturals, for example, 13142262504 + ... + 13142262509.

It is an arithmetic number, because the mean of its divisors is an integer number (26284525014).

Almost surely, 2^78853575039 is an apocalyptic number.

78853575039 is a deficient number, since it is larger than the sum of its proper divisors (26284525017).

78853575039 is a wasteful number, since it uses less digits than its factorization.

78853575039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26284525016.

The product of its (nonzero) digits is 31752000, while the sum is 60.

The spelling of 78853575039 in words is "seventy-eight billion, eight hundred fifty-three million, five hundred seventy-five thousand, thirty-nine".