9728919058 has 4 divisors (see below), whose sum is σ = 14593378590. Its totient is φ = 4864459528.

The previous prime is 9728919041. The next prime is 9728919071. The reversal of 9728919058 is 8509198279.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9665445969 + 63473089 = 98313^2 + 7967^2 .

It is a super-4 number, since 4×9728919058⁴ (a number of 41 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 9728918993 and 9728919011.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2432229763 + ... + 2432229766.

Almost surely, 2^9728919058 is an apocalyptic number.

9728919058 is a deficient number, since it is larger than the sum of its proper divisors (4864459532).

9728919058 is a wasteful number, since it uses less digits than its factorization.

9728919058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4864459531.

The product of its (nonzero) digits is 3265920, while the sum is 58.

The square root of 9728919058 is about 98635.2830279307. The cubic root of 9728919058 is about 2134.7885431732.

The spelling of 9728919058 in words is "nine billion, seven hundred twenty-eight million, nine hundred nineteen thousand, fifty-eight".