7663076868661 has 4 divisors (see below), whose sum is σ = 7663122409932. Its totient is φ = 7663031327392.

The previous prime is 7663076868653. The next prime is 7663076868677. The reversal of 7663076868661 is 1668686703667.

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 123488988100 + 7539587880561 = 351410^2 + 2745831^2 .

It is a cyclic number.

It is not a de Polignac number, because 7663076868661 - 2³ = 7663076868653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7663076868631) 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, 22517296 + ... + 22855081.

It is an arithmetic number, because the mean of its divisors is an integer number (1915780602483).

Almost surely, 2^{7663076868661} is an apocalyptic number.

It is an amenable number.

7663076868661 is a deficient number, since it is larger than the sum of its proper divisors (45541271).

7663076868661 is a wasteful number, since it uses less digits than its factorization.

7663076868661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45541270.

The product of its (nonzero) digits is 438939648, while the sum is 70.

The spelling of 7663076868661 in words is "seven trillion, six hundred sixty-three billion, seventy-six million, eight hundred sixty-eight thousand, six hundred sixty-one".