9686728027 has 4 divisors (see below), whose sum is σ = 10256535576. Its totient is φ = 9116920480.

The previous prime is 9686728003. The next prime is 9686728039. The reversal of 9686728027 is 7208276869.

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

It is not a de Polignac number, because 9686728027 - 2⁷ = 9686727899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9686728127) 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, 284903749 + ... + 284903782.

It is an arithmetic number, because the mean of its divisors is an integer number (2564133894).

Almost surely, 2^9686728027 is an apocalyptic number.

9686728027 is a deficient number, since it is larger than the sum of its proper divisors (569807549).

9686728027 is a wasteful number, since it uses less digits than its factorization.

9686728027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569807548.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The square root of 9686728027 is about 98421.1767202567. The cubic root of 9686728027 is about 2131.6981195556.

The spelling of 9686728027 in words is "nine billion, six hundred eighty-six million, seven hundred twenty-eight thousand, twenty-seven".