9969433668407 has 4 divisors (see below), whose sum is σ = 9969440171040. Its totient is φ = 9969427165776.

The previous prime is 9969433668391. The next prime is 9969433668451. The reversal of 9969433668407 is 7048663349699.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 9969433668407 - 2⁴ = 9969433668391 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 (9969433668497) 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, 462194 + ... + 4489152.

It is an arithmetic number, because the mean of its divisors is an integer number (2492360042760).

Almost surely, 2^{9969433668407} is an apocalyptic number.

9969433668407 is a deficient number, since it is larger than the sum of its proper divisors (6502633).

9969433668407 is a wasteful number, since it uses less digits than its factorization.

9969433668407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6502632.

The product of its (nonzero) digits is 1269789696, while the sum is 74.

Adding to 9969433668407 its sum of digits (74), we get a square (9969433668481 = 3157441²).

The spelling of 9969433668407 in words is "nine trillion, nine hundred sixty-nine billion, four hundred thirty-three million, six hundred sixty-eight thousand, four hundred seven".