78986854116 has 81 divisors (see below), whose sum is σ = 206446291779. Its totient is φ = 25462767600.

The previous prime is 78986854097. The next prime is 78986854123. The reversal of 78986854116 is 61145868987.

The square root of 78986854116 is 281046.

It is a perfect power (a square), and thus also a powerful number.

78986854116 is a `hidden beast` number, since 7 + 8 + 9 + 86 + 8 + 541 + 1 + 6 = 666.

It is a super-2 number, since 2×78986854116² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 52273801 + ... + 52275311.

Almost surely, 2^78986854116 is an apocalyptic number.

78986854116 is the 281046-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78986854116

78986854116 is an abundant number, since it is smaller than the sum of its proper divisors (127459437663).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78986854116 is a wasteful number, since it uses less digits than its factorization.

78986854116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3094 (or 1547 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 63.

The spelling of 78986854116 in words is "seventy-eight billion, nine hundred eighty-six million, eight hundred fifty-four thousand, one hundred sixteen".