9971580773 has 16 divisors (see below), whose sum is σ = 12460462080. Its totient is φ = 7752337200.

The previous prime is 9971580763. The next prime is 9971580791. The reversal of 9971580773 is 3770851799.

It is a cyclic number.

It is not a de Polignac number, because 9971580773 - 2¹² = 9971576677 is a prime.

It is a super-2 number, since 2×9971580773² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9971580763) 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, 113693 + ... + 181298.

It is an arithmetic number, because the mean of its divisors is an integer number (778778880).

Almost surely, 2^9971580773 is an apocalyptic number.

It is an amenable number.

9971580773 is a deficient number, since it is larger than the sum of its proper divisors (2488881307).

9971580773 is a wasteful number, since it uses less digits than its factorization.

9971580773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295448.

The product of its (nonzero) digits is 3333960, while the sum is 56.

The square root of 9971580773 is about 99857.8027647314. The cubic root of 9971580773 is about 2152.3918413182.

The spelling of 9971580773 in words is "nine billion, nine hundred seventy-one million, five hundred eighty thousand, seven hundred seventy-three".