67389838824064 has 64 divisors (see below), whose sum is σ = 137669532755040. Its totient is φ = 32840841470976.

The previous prime is 67389838824043. The next prime is 67389838824103. The reversal of 67389838824064 is 46042883898376.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10538619 + ... + 15679354.

Almost surely, 2^{67389838824064} is an apocalyptic number.

67389838824064 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

67389838824064 is an abundant number, since it is smaller than the sum of its proper divisors (70279693930976).

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

67389838824064 is a wasteful number, since it uses less digits than its factorization.

67389838824064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26218497 (or 26218485 counting only the distinct ones).

The product of its (nonzero) digits is 2675441664, while the sum is 76.

The spelling of 67389838824064 in words is "sixty-seven trillion, three hundred eighty-nine billion, eight hundred thirty-eight million, eight hundred twenty-four thousand, sixty-four".