7125773328 has 90 divisors (see below), whose sum is σ = 20121312042. Its totient is φ = 2353996800.

The previous prime is 7125773273. The next prime is 7125773371. The reversal of 7125773328 is 8233775217.

It is a happy number.

7125773328 is a `hidden beast` number, since 7 + 1 + 257 + 73 + 328 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 3746908944 + 3378864384 = 61212^2 + 58128^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11856228 + ... + 11856828.

Almost surely, 2^7125773328 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 7125773328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10060656021).

7125773328 is an abundant number, since it is smaller than the sum of its proper divisors (12995538714).

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

7125773328 is a wasteful number, since it uses less digits than its factorization.

7125773328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353 (or 743 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The square root of 7125773328 is about 84414.2957561099. The cubic root of 7125773328 is about 1924.3201807499.

The spelling of 7125773328 in words is "seven billion, one hundred twenty-five million, seven hundred seventy-three thousand, three hundred twenty-eight".