78063264 has 72 divisors (see below), whose sum is σ = 230237280. Its totient is φ = 26018496.

The previous prime is 78063263. The next prime is 78063319. The reversal of 78063264 is 46236087.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (78063263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2757 + ... + 12795.

It is an arithmetic number, because the mean of its divisors is an integer number (3197740).

Almost surely, 2^78063264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78063264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115118640).

78063264 is an abundant number, since it is smaller than the sum of its proper divisors (152174016).

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

78063264 is a wasteful number, since it uses less digits than its factorization.

78063264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10064 (or 10044 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 78063264 is about 8835.3417590946. The cubic root of 78063264 is about 427.3813521152.

The spelling of 78063264 in words is "seventy-eight million, sixty-three thousand, two hundred sixty-four".