9657402780 has 96 divisors (see below), whose sum is σ = 27495740160. Its totient is φ = 2532119040.

The previous prime is 9657402773. The next prime is 9657402803. The reversal of 9657402780 is 872047569.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2486440 + ... + 2490320.

It is an arithmetic number, because the mean of its divisors is an integer number (286413960).

Almost surely, 2^9657402780 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 9657402780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13747870080).

9657402780 is an abundant number, since it is smaller than the sum of its proper divisors (17838337380).

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

9657402780 is a wasteful number, since it uses less digits than its factorization.

9657402780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4579 (or 4577 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 9657402780 is about 98272.0854566545. The cubic root of 9657402780 is about 2129.5448034312.

The spelling of 9657402780 in words is "nine billion, six hundred fifty-seven million, four hundred two thousand, seven hundred eighty".