67328791290 has 24 divisors (see below), whose sum is σ = 175054857588. Its totient is φ = 17954344320.

The previous prime is 67328791289. The next prime is 67328791333. The reversal of 67328791290 is 9219782376.

67328791290 is a `hidden beast` number, since 6 + 73 + 287 + 9 + 1 + 290 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 54362186649 + 12966604641 = 233157^2 + 113871^2 .

It is a super-2 number, since 2×67328791290² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 374048751 + ... + 374048930.

Almost surely, 2^67328791290 is an apocalyptic number.

67328791290 is an abundant number, since it is smaller than the sum of its proper divisors (107726066298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67328791290 is a wasteful number, since it uses less digits than its factorization.

67328791290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748097694 (or 748097691 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The spelling of 67328791290 in words is "sixty-seven billion, three hundred twenty-eight million, seven hundred ninety-one thousand, two hundred ninety".