9727155256 has 128 divisors (see below), whose sum is σ = 23144808960. Its totient is φ = 3729369600.

The previous prime is 9727155253. The next prime is 9727155287. The reversal of 9727155256 is 6525517279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9727155253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8915271 + ... + 8916361.

It is an arithmetic number, because the mean of its divisors is an integer number (180818820).

Almost surely, 2^9727155256 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 9727155256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11572404480).

9727155256 is an abundant number, since it is smaller than the sum of its proper divisors (13417653704).

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

9727155256 is a wasteful number, since it uses less digits than its factorization.

9727155256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485 (or 1481 counting only the distinct ones).

The product of its digits is 1323000, while the sum is 49.

The square root of 9727155256 is about 98626.3415929031. The cubic root of 9727155256 is about 2134.6595267207.

The spelling of 9727155256 in words is "nine billion, seven hundred twenty-seven million, one hundred fifty-five thousand, two hundred fifty-six".