7648742965 has 8 divisors (see below), whose sum is σ = 9351670968. Its totient is φ = 6003541440.

The previous prime is 7648742963. The next prime is 7648743001. The reversal of 7648742965 is 5692478467.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2094618289 + 5554124676 = 45767^2 + 74526^2 .

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

It is not a de Polignac number, because 7648742965 - 2¹ = 7648742963 is a prime.

It is a super-3 number, since 3×7648742965³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7648742963) 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, 14431326 + ... + 14431855.

It is an arithmetic number, because the mean of its divisors is an integer number (1168958871).

Almost surely, 2^7648742965 is an apocalyptic number.

It is an amenable number.

7648742965 is a deficient number, since it is larger than the sum of its proper divisors (1702928003).

7648742965 is a wasteful number, since it uses less digits than its factorization.

7648742965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28863239.

The product of its digits is 20321280, while the sum is 58.

The square root of 7648742965 is about 87457.0921366586. The cubic root of 7648742965 is about 1970.2894062355.

The spelling of 7648742965 in words is "seven billion, six hundred forty-eight million, seven hundred forty-two thousand, nine hundred sixty-five".