2067546478 has 4 divisors (see below), whose sum is σ = 3101319720. Its totient is φ = 1033773238.

The previous prime is 2067546469. The next prime is 2067546479. The reversal of 2067546478 is 8746457602.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2067546479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 516886618 + ... + 516886621.

It is an arithmetic number, because the mean of its divisors is an integer number (775329930).

Almost surely, 2^2067546478 is an apocalyptic number.

2067546478 is a deficient number, since it is larger than the sum of its proper divisors (1033773242).

2067546478 is a wasteful number, since it uses less digits than its factorization.

2067546478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033773241.

The product of its (nonzero) digits is 2257920, while the sum is 49.

The square root of 2067546478 is about 45470.2812615009. The cubic root of 2067546478 is about 1273.9481732493.

The spelling of 2067546478 in words is "two billion, sixty-seven million, five hundred forty-six thousand, four hundred seventy-eight".