9817354972 has 12 divisors (see below), whose sum is σ = 17183864880. Its totient is φ = 4907679296.

The previous prime is 9817354913. The next prime is 9817354979. The reversal of 9817354972 is 2794537189.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9817354979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227197 + ... + 266932.

It is an arithmetic number, because the mean of its divisors is an integer number (1431988740).

Almost surely, 2^9817354972 is an apocalyptic number.

It is an amenable number.

9817354972 is a deficient number, since it is larger than the sum of its proper divisors (7366509908).

9817354972 is a wasteful number, since it uses less digits than its factorization.

9817354972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499100 (or 499098 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 55.

The square root of 9817354972 is about 99082.5664382993. The cubic root of 9817354972 is about 2141.2374544502.

The spelling of 9817354972 in words is "nine billion, eight hundred seventeen million, three hundred fifty-four thousand, nine hundred seventy-two".