9689857040 has 40 divisors (see below), whose sum is σ = 22539104280. Its totient is φ = 3874190336.

The previous prime is 9689857027. The next prime is 9689857091. The reversal of 9689857040 is 407589869.

It can be written as a sum of positive squares in 4 ways, for example, as 5756560384 + 3933296656 = 75872^2 + 62716^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 158492 + ... + 210948.

It is an arithmetic number, because the mean of its divisors is an integer number (563477607).

Almost surely, 2^9689857040 is an apocalyptic number.

It is an amenable number.

9689857040 is an abundant number, since it is smaller than the sum of its proper divisors (12849247240).

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

9689857040 is a wasteful number, since it uses less digits than its factorization.

9689857040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54779 (or 54773 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 56.

The square root of 9689857040 is about 98437.0714720831. The cubic root of 9689857040 is about 2131.9276223366.

The spelling of 9689857040 in words is "nine billion, six hundred eighty-nine million, eight hundred fifty-seven thousand, forty".