78287230224 has 90 divisors (see below), whose sum is σ = 254866231230. Its totient is φ = 22367778048.

The previous prime is 78287230207. The next prime is 78287230271. The reversal of 78287230224 is 42203278287.

It can be written as a sum of positive squares in only one way, i.e., 74071065600 + 4216164624 = 272160^2 + 64932^2 .

It is a super-2 number, since 2×78287230224² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78287230224.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5540509 + ... + 5554620.

Almost surely, 2^78287230224 is an apocalyptic number.

It is an amenable number.

78287230224 is an abundant number, since it is smaller than the sum of its proper divisors (176579001006).

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

78287230224 is a wasteful number, since it uses less digits than its factorization.

78287230224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11095157 (or 11095141 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 45.

The spelling of 78287230224 in words is "seventy-eight billion, two hundred eighty-seven million, two hundred thirty thousand, two hundred twenty-four".