7478166528 has 264 divisors, whose sum is σ = 25980851520. Its totient is φ = 2023833600.

The previous prime is 7478166523. The next prime is 7478166529. The reversal of 7478166528 is 8256618747.

7478166528 is a `hidden beast` number, since 7 + 478 + 166 + 5 + 2 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (7478166523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1222678 + ... + 1228778.

Almost surely, 2^7478166528 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 7478166528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12990425760).

7478166528 is an abundant number, since it is smaller than the sum of its proper divisors (18502684992).

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

7478166528 is a wasteful number, since it uses less digits than its factorization.

7478166528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6153 (or 6132 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The square root of 7478166528 is about 86476.3928942460. The cubic root of 7478166528 is about 1955.5325265730.

The spelling of 7478166528 in words is "seven billion, four hundred seventy-eight million, one hundred sixty-six thousand, five hundred twenty-eight".