78985210526 has 16 divisors (see below), whose sum is σ = 118830499200. Its totient is φ = 39375086808.

The previous prime is 78985210511. The next prime is 78985210543. The reversal of 78985210526 is 62501258987.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7360601 + ... + 7371323.

It is an arithmetic number, because the mean of its divisors is an integer number (7426906200).

Almost surely, 2^78985210526 is an apocalyptic number.

78985210526 is a deficient number, since it is larger than the sum of its proper divisors (39845288674).

78985210526 is a wasteful number, since it uses less digits than its factorization.

78985210526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21343.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 78985210526 in words is "seventy-eight billion, nine hundred eighty-five million, two hundred ten thousand, five hundred twenty-six".