78297796306 has 8 divisors (see below), whose sum is σ = 118609533324. Its totient is φ = 38761285200.

The previous prime is 78297796259. The next prime is 78297796307. The reversal of 78297796306 is 60369779287.

It can be written as a sum of positive squares in 2 ways, for example, as 68740974225 + 9556822081 = 262185^2 + 97759^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78297796306² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78297796307) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 193806225 + ... + 193806628.

Almost surely, 2^78297796306 is an apocalyptic number.

78297796306 is a deficient number, since it is larger than the sum of its proper divisors (40311737018).

78297796306 is a wasteful number, since it uses less digits than its factorization.

78297796306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387612956.

The product of its (nonzero) digits is 48009024, while the sum is 64.

The spelling of 78297796306 in words is "seventy-eight billion, two hundred ninety-seven million, seven hundred ninety-six thousand, three hundred six".