8278278528 has 64 divisors (see below), whose sum is σ = 23680666800. Its totient is φ = 2547161088.

The previous prime is 8278278527. The next prime is 8278278529. The reversal of 8278278528 is 8258728728.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8278278527) and next prime (8278278529).

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8278278521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 824163 + ... + 834146.

Almost surely, 2^8278278528 is an apocalyptic number.

It is an amenable number.

8278278528 is an abundant number, since it is smaller than the sum of its proper divisors (15402388272).

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

8278278528 is a wasteful number, since it uses less digits than its factorization.

8278278528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658339 (or 1658327 counting only the distinct ones).

The product of its digits is 8028160, while the sum is 57.

The square root of 8278278528 is about 90985.0456283888. The cubic root of 8278278528 is about 2022.9260708012.

The spelling of 8278278528 in words is "eight billion, two hundred seventy-eight million, two hundred seventy-eight thousand, five hundred twenty-eight".