9669600891687 has 8 divisors (see below), whose sum is σ = 14064874024320. Its totient is φ = 5860364176760.

The previous prime is 9669600891677. The next prime is 9669600891697. The reversal of 9669600891687 is 7861980069669.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9669600891677) and next prime (9669600891697).

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

It is a cyclic number.

It is not a de Polignac number, because 9669600891687 - 2¹² = 9669600887591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9669600891607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146509104387 + ... + 146509104452.

It is an arithmetic number, because the mean of its divisors is an integer number (1758109253040).

Almost surely, 2^{9669600891687} is an apocalyptic number.

9669600891687 is a deficient number, since it is larger than the sum of its proper divisors (4395273132633).

9669600891687 is a wasteful number, since it uses less digits than its factorization.

9669600891687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293018208853.

The product of its (nonzero) digits is 423263232, while the sum is 75.

The spelling of 9669600891687 in words is "nine trillion, six hundred sixty-nine billion, six hundred million, eight hundred ninety-one thousand, six hundred eighty-seven".