8968337661 has 4 divisors (see below), whose sum is σ = 11957783552. Its totient is φ = 5978891772.

The previous prime is 8968337647. The next prime is 8968337689. The reversal of 8968337661 is 1667338698.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8968337661 - 2⁹ = 8968337149 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 (8968337561) 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, 1494722941 + ... + 1494722946.

It is an arithmetic number, because the mean of its divisors is an integer number (2989445888).

Almost surely, 2^8968337661 is an apocalyptic number.

It is an amenable number.

8968337661 is a deficient number, since it is larger than the sum of its proper divisors (2989445891).

8968337661 is a wasteful number, since it uses less digits than its factorization.

8968337661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989445890.

The product of its digits is 7838208, while the sum is 57.

The square root of 8968337661 is about 94701.3075992090. The cubic root of 8968337661 is about 2077.6416858858.

The spelling of 8968337661 in words is "eight billion, nine hundred sixty-eight million, three hundred thirty-seven thousand, six hundred sixty-one".