9667647752407 has 4 divisors (see below), whose sum is σ = 9671831072656. Its totient is φ = 9663464432160.

The previous prime is 9667647752387. The next prime is 9667647752417. The reversal of 9667647752407 is 7042577467669.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9667647752407 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 (9667647752417) 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, 2091656658 + ... + 2091661279.

It is an arithmetic number, because the mean of its divisors is an integer number (2417957768164).

Almost surely, 2^{9667647752407} is an apocalyptic number.

9667647752407 is a deficient number, since it is larger than the sum of its proper divisors (4183320249).

9667647752407 is a wasteful number, since it uses less digits than its factorization.

9667647752407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4183320248.

The product of its (nonzero) digits is 746807040, while the sum is 70.

The spelling of 9667647752407 in words is "nine trillion, six hundred sixty-seven billion, six hundred forty-seven million, seven hundred fifty-two thousand, four hundred seven".