67021134380782 has 16 divisors (see below), whose sum is σ = 100840972474800. Its totient is φ = 33407488033920.

The previous prime is 67021134380777. The next prime is 67021134380789. The reversal of 67021134380782 is 28708343112076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67021134380789) 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, 9290694 + ... + 14844502.

It is an arithmetic number, because the mean of its divisors is an integer number (6302560779675).

Almost surely, 2^{67021134380782} is an apocalyptic number.

67021134380782 is a deficient number, since it is larger than the sum of its proper divisors (33819838094018).

67021134380782 is a wasteful number, since it uses less digits than its factorization.

67021134380782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5572371.

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 67021134380782 in words is "sixty-seven trillion, twenty-one billion, one hundred thirty-four million, three hundred eighty thousand, seven hundred eighty-two".