9771697152 has 132 divisors (see below), whose sum is σ = 32246571136. Its totient is φ = 2791895040.

The previous prime is 9771697139. The next prime is 9771697181. The reversal of 9771697152 is 2517961779.

It is a happy number.

It is a super-2 number, since 2×9771697152² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11224 + ... + 140247.

Almost surely, 2^9771697152 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 9771697152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16123285568).

9771697152 is an abundant number, since it is smaller than the sum of its proper divisors (22474873984).

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

9771697152 is a wasteful number, since it uses less digits than its factorization.

9771697152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151504 (or 151483 counting only the distinct ones).

The product of its digits is 1666980, while the sum is 54.

The square root of 9771697152 is about 98851.8950349461. The cubic root of 9771697152 is about 2137.9128595347.

The spelling of 9771697152 in words is "nine billion, seven hundred seventy-one million, six hundred ninety-seven thousand, one hundred fifty-two".