9752778258 has 16 divisors (see below), whose sum is σ = 19508154240. Its totient is φ = 3250493136.

The previous prime is 9752778239. The next prime is 9752778283. The reversal of 9752778258 is 8528772579.

9752778258 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57610 + ... + 151077.

It is an arithmetic number, because the mean of its divisors is an integer number (1219259640).

Almost surely, 2^9752778258 is an apocalyptic number.

9752778258 is an abundant number, since it is smaller than the sum of its proper divisors (9755375982).

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

9752778258 is a wasteful number, since it uses less digits than its factorization.

9752778258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216481.

The product of its digits is 19756800, while the sum is 60.

The square root of 9752778258 is about 98756.1555448571. The cubic root of 9752778258 is about 2136.5322369317.

The spelling of 9752778258 in words is "nine billion, seven hundred fifty-two million, seven hundred seventy-eight thousand, two hundred fifty-eight".