9514399721 has 8 divisors (see below), whose sum is σ = 9877270080. Its totient is φ = 9153848592.

The previous prime is 9514399693. The next prime is 9514399723. The reversal of 9514399721 is 1279934159.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9514399721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9514399721.

It is not an unprimeable number, because it can be changed into a prime (9514399723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571445 + ... + 587858.

It is an arithmetic number, because the mean of its divisors is an integer number (1234658760).

Almost surely, 2^9514399721 is an apocalyptic number.

It is an amenable number.

9514399721 is a deficient number, since it is larger than the sum of its proper divisors (362870359).

9514399721 is a wasteful number, since it uses less digits than its factorization.

9514399721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159615.

The product of its digits is 612360, while the sum is 50.

The square root of 9514399721 is about 97541.7844874698. The cubic root of 9514399721 is about 2118.9813339867.

The spelling of 9514399721 in words is "nine billion, five hundred fourteen million, three hundred ninety-nine thousand, seven hundred twenty-one".