67143375405438 has 16 divisors (see below), whose sum is σ = 135904663472256. Its totient is φ = 22111473024920.

The previous prime is 67143375405437. The next prime is 67143375405503. The reversal of 67143375405438 is 83450457334176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67143375405433) 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 7 ways as a sum of consecutive naturals, for example, 67413027018 + ... + 67413028013.

It is an arithmetic number, because the mean of its divisors is an integer number (8494041467016).

Almost surely, 2^{67143375405438} is an apocalyptic number.

67143375405438 is an abundant number, since it is smaller than the sum of its proper divisors (68761288066818).

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

67143375405438 is a wasteful number, since it uses less digits than its factorization.

67143375405438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134826055119.

The product of its (nonzero) digits is 101606400, while the sum is 60.

The spelling of 67143375405438 in words is "sixty-seven trillion, one hundred forty-three billion, three hundred seventy-five million, four hundred five thousand, four hundred thirty-eight".