7663493009 has 4 divisors (see below), whose sum is σ = 7676775204. Its totient is φ = 7650210816.

The previous prime is 7663492997. The next prime is 7663493029. The reversal of 7663493009 is 9003943667.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6996820609 + 666672400 = 83647^2 + 25820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7663493009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7663493029) 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, 6640232 + ... + 6641385.

It is an arithmetic number, because the mean of its divisors is an integer number (1919193801).

Almost surely, 2^7663493009 is an apocalyptic number.

It is an amenable number.

7663493009 is a deficient number, since it is larger than the sum of its proper divisors (13282195).

7663493009 is a wasteful number, since it uses less digits than its factorization.

7663493009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13282194.

The product of its (nonzero) digits is 734832, while the sum is 47.

The square root of 7663493009 is about 87541.3788388097. The cubic root of 7663493009 is about 1971.5551128722. Note that the first 3 decimals are identical.

The spelling of 7663493009 in words is "seven billion, six hundred sixty-three million, four hundred ninety-three thousand, nine".