78836428260 has 72 divisors (see below), whose sum is σ = 239752127160. Its totient is φ = 20968985088.

The previous prime is 78836428241. The next prime is 78836428267. The reversal of 78836428260 is 6282463887.

It can be written as a sum of positive squares in 4 ways, for example, as 3176224164 + 75660204096 = 56358^2 + 275064^2 .

It is a junction number, because it is equal to n+sod(n) for n = 78836428197 and 78836428206.

It is not an unprimeable number, because it can be changed into a prime (78836428267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 492937 + ... + 632976.

It is an arithmetic number, because the mean of its divisors is an integer number (3329890655).

Almost surely, 2^78836428260 is an apocalyptic number.

It is an amenable number.

78836428260 is an abundant number, since it is smaller than the sum of its proper divisors (160915698900).

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

78836428260 is a wasteful number, since it uses less digits than its factorization.

78836428260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126317 (or 1126312 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The spelling of 78836428260 in words is "seventy-eight billion, eight hundred thirty-six million, four hundred twenty-eight thousand, two hundred sixty".