9572378772 has 144 divisors (see below), whose sum is σ = 25624166400. Its totient is φ = 2757412800.

The previous prime is 9572378759. The next prime is 9572378779. The reversal of 9572378772 is 2778732759.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9572378779) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7483629 + ... + 7484907.

It is an arithmetic number, because the mean of its divisors is an integer number (177945600).

Almost surely, 2^9572378772 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 9572378772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12812083200).

9572378772 is an abundant number, since it is smaller than the sum of its proper divisors (16051787628).

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

9572378772 is a wasteful number, since it uses less digits than its factorization.

9572378772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418 (or 1385 counting only the distinct ones).

The product of its digits is 10372320, while the sum is 57.

The square root of 9572378772 is about 97838.5341877115. The cubic root of 9572378772 is about 2123.2768515401.

The spelling of 9572378772 in words is "nine billion, five hundred seventy-two million, three hundred seventy-eight thousand, seven hundred seventy-two".