67662257009 has 8 divisors (see below), whose sum is σ = 68747573832. Its totient is φ = 66581222400.

The previous prime is 67662256997. The next prime is 67662257017. The reversal of 67662257009 is 90075226676.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2118576784 + 65543680225 = 46028^2 + 256015^2 .

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 67662257009 - 2⁴ = 67662256993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67662257809) 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, 1038692 + ... + 1101909.

It is an arithmetic number, because the mean of its divisors is an integer number (8593446729).

Almost surely, 2^67662257009 is an apocalyptic number.

It is an amenable number.

67662257009 is a deficient number, since it is larger than the sum of its proper divisors (1085316823).

67662257009 is a wasteful number, since it uses less digits than its factorization.

67662257009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141107.

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 67662257009 in words is "sixty-seven billion, six hundred sixty-two million, two hundred fifty-seven thousand, nine".