7728289701 has 8 divisors (see below), whose sum is σ = 11241148704. Its totient is φ = 4683811920.

The previous prime is 7728289627. The next prime is 7728289703. The reversal of 7728289701 is 1079828277.

It is a happy number.

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

It is not a de Polignac number, because 7728289701 - 2⁹ = 7728289189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7728289703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117095266 + ... + 117095331.

It is an arithmetic number, because the mean of its divisors is an integer number (1405143588).

Almost surely, 2^7728289701 is an apocalyptic number.

It is an amenable number.

7728289701 is a deficient number, since it is larger than the sum of its proper divisors (3512859003).

7728289701 is a wasteful number, since it uses less digits than its factorization.

7728289701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234190611.

The product of its (nonzero) digits is 790272, while the sum is 51.

The square root of 7728289701 is about 87910.6916193929. The cubic root of 7728289701 is about 1977.0961839377.

The spelling of 7728289701 in words is "seven billion, seven hundred twenty-eight million, two hundred eighty-nine thousand, seven hundred one".