9173974656 has 256 divisors, whose sum is σ = 32170245120. Its totient is φ = 2242560000.

The previous prime is 9173974651. The next prime is 9173974727. The reversal of 9173974656 is 6564793719.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 9173974596 and 9173974605.

It is not an unprimeable number, because it can be changed into a prime (9173974651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 493531 + ... + 511781.

It is an arithmetic number, because the mean of its divisors is an integer number (125665020).

Almost surely, 2^9173974656 is an apocalyptic number.

9173974656 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9173974656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16085122560).

9173974656 is an abundant number, since it is smaller than the sum of its proper divisors (22996270464).

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

9173974656 is a wasteful number, since it uses less digits than its factorization.

9173974656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18303 (or 18291 counting only the distinct ones).

The product of its digits is 8573040, while the sum is 57.

The square root of 9173974656 is about 95780.8679016848. The cubic root of 9173974656 is about 2093.4014083460.

The spelling of 9173974656 in words is "nine billion, one hundred seventy-three million, nine hundred seventy-four thousand, six hundred fifty-six".