78943017024 has 189 divisors, whose sum is σ = 237007361773. Its totient is φ = 25120786944.

The previous prime is 78943016981. The next prime is 78943017119. The reversal of 78943017024 is 42071034987.

The square root of 78943017024 is 280968.

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

It can be written as a sum of positive squares in only one way, i.e., 64195343424 + 14747673600 = 253368^2 + 121440^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 155094082 + ... + 155094590.

Almost surely, 2^78943017024 is an apocalyptic number.

78943017024 is the 280968-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78943017024

78943017024 is an abundant number, since it is smaller than the sum of its proper divisors (158064344749).

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

78943017024 is an equidigital number, since it uses as much as digits as its factorization.

78943017024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 78943017024 in words is "seventy-eight billion, nine hundred forty-three million, seventeen thousand, twenty-four".