67736312909 has 16 divisors (see below), whose sum is σ = 72234381312. Its totient is φ = 63369541488.

The previous prime is 67736312879. The next prime is 67736312927. The reversal of 67736312909 is 90921363776.

It is not a de Polignac number, because 67736312909 - 2¹⁶ = 67736247373 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 (67736812909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1625792 + ... + 1666934.

It is an arithmetic number, because the mean of its divisors is an integer number (4514648832).

Almost surely, 2^67736312909 is an apocalyptic number.

It is an amenable number.

67736312909 is a deficient number, since it is larger than the sum of its proper divisors (4498068403).

67736312909 is a wasteful number, since it uses less digits than its factorization.

67736312909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42736.

The product of its (nonzero) digits is 2571912, while the sum is 53.

The spelling of 67736312909 in words is "sixty-seven billion, seven hundred thirty-six million, three hundred twelve thousand, nine hundred nine".