9671722572 has 48 divisors (see below), whose sum is σ = 22868697600. Its totient is φ = 3180914880.

The previous prime is 9671722561. The next prime is 9671722573. The reversal of 9671722572 is 2752271769.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (9671722573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1958947 + ... + 1963877.

It is an arithmetic number, because the mean of its divisors is an integer number (476431200).

Almost surely, 2^9671722572 is an apocalyptic number.

It is an amenable number.

9671722572 is an abundant number, since it is smaller than the sum of its proper divisors (13196975028).

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

9671722572 is a wasteful number, since it uses less digits than its factorization.

9671722572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7086 (or 7084 counting only the distinct ones).

The product of its digits is 740880, while the sum is 48.

The square root of 9671722572 is about 98344.9163505669. The cubic root of 9671722572 is about 2130.5968315824.

The spelling of 9671722572 in words is "nine billion, six hundred seventy-one million, seven hundred twenty-two thousand, five hundred seventy-two".