78322487328 has 270 divisors, whose sum is σ = 241806385359. Its totient is φ = 24867900288.

The previous prime is 78322487323. The next prime is 78322487333. The reversal of 78322487328 is 82378422387.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

78322487328 is a `hidden beast` number, since 78 + 3 + 2 + 248 + 7 + 328 = 666.

It is an interprime number because it is at equal distance from previous prime (78322487323) and next prime (78322487333).

It can be written as a sum of positive squares in only one way, i.e., 39161243664 + 39161243664 = 197892^2 + 197892^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=197892.

It is a super-2 number, since 2×78322487328² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (78322487323) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 327709033 + ... + 327709271.

Almost surely, 2^78322487328 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 78322487328

78322487328 is an abundant number, since it is smaller than the sum of its proper divisors (163483898031).

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

78322487328 is an equidigital number, since it uses as much as digits as its factorization.

78322487328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 267 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 54.

The spelling of 78322487328 in words is "seventy-eight billion, three hundred twenty-two million, four hundred eighty-seven thousand, three hundred twenty-eight".