291434920006 has 4 divisors (see below), whose sum is σ = 437152380012. Its totient is φ = 145717460002.

The previous prime is 291434920001. The next prime is 291434920027. The reversal of 291434920006 is 600029434192.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (291434920001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72858730000 + ... + 72858730003.

It is an arithmetic number, because the mean of its divisors is an integer number (109288095003).

Almost surely, 2^291434920006 is an apocalyptic number.

291434920006 is a deficient number, since it is larger than the sum of its proper divisors (145717460006).

291434920006 is a wasteful number, since it uses less digits than its factorization.

291434920006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145717460005.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 291434920006 in words is "two hundred ninety-one billion, four hundred thirty-four million, nine hundred twenty thousand, six".