6667406792 has 8 divisors (see below), whose sum is σ = 12501387750. Its totient is φ = 3333703392.

The previous prime is 6667406789. The next prime is 6667406797. The reversal of 6667406792 is 2976047666.

It can be written as a sum of positive squares in only one way, i.e., 6653012356 + 14394436 = 81566^2 + 3794^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (6667406797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 416712917 + ... + 416712932.

Almost surely, 2^6667406792 is an apocalyptic number.

It is an amenable number.

6667406792 is a deficient number, since it is larger than the sum of its proper divisors (5833980958).

6667406792 is a wasteful number, since it uses less digits than its factorization.

6667406792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833425855 (or 833425851 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 53.

The square root of 6667406792 is about 81654.1902905172. The cubic root of 6667406792 is about 1882.1417036452.

The spelling of 6667406792 in words is "six billion, six hundred sixty-seven million, four hundred six thousand, seven hundred ninety-two".