67020473391 has 16 divisors (see below), whose sum is σ = 90728905344. Its totient is φ = 43996686624.

The previous prime is 67020473383. The next prime is 67020473407. The reversal of 67020473391 is 19337402076.

It is not a de Polignac number, because 67020473391 - 2³ = 67020473383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67020473341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 477145 + ... + 601421.

It is an arithmetic number, because the mean of its divisors is an integer number (5670556584).

Almost surely, 2^67020473391 is an apocalyptic number.

67020473391 is a deficient number, since it is larger than the sum of its proper divisors (23708431953).

67020473391 is a wasteful number, since it uses less digits than its factorization.

67020473391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127030.

The product of its (nonzero) digits is 190512, while the sum is 42.

The spelling of 67020473391 in words is "sixty-seven billion, twenty million, four hundred seventy-three thousand, three hundred ninety-one".