78229852416 has 81 divisors (see below), whose sum is σ = 225594665751. Its totient is φ = 26072142336.

The previous prime is 78229852411. The next prime is 78229852423. The reversal of 78229852416 is 61425892287.

The square root of 78229852416 is 279696.

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

78229852416 is a `hidden beast` number, since 7 + 8 + 22 + 98 + 524 + 1 + 6 = 666.

It is a super-2 number, since 2×78229852416² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78229852411) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13422495 + ... + 13428321.

Almost surely, 2^78229852416 is an apocalyptic number.

78229852416 is the 279696-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78229852416

78229852416 is an abundant number, since it is smaller than the sum of its proper divisors (147364813335).

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

78229852416 is an frugal number, since it uses more digits than its factorization.

78229852416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11676 (or 5832 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The spelling of 78229852416 in words is "seventy-eight billion, two hundred twenty-nine million, eight hundred fifty-two thousand, four hundred sixteen".