67438083477 has 16 divisors (see below), whose sum is σ = 90173371392. Its totient is φ = 44830896240.

The previous prime is 67438083469. The next prime is 67438083491. The reversal of 67438083477 is 77438083476.

It is not a de Polignac number, because 67438083477 - 2³ = 67438083469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67438083277) 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, 2067102 + ... + 2099472.

It is an arithmetic number, because the mean of its divisors is an integer number (5635835712).

Almost surely, 2^67438083477 is an apocalyptic number.

It is an amenable number.

67438083477 is a deficient number, since it is larger than the sum of its proper divisors (22735287915).

67438083477 is a wasteful number, since it uses less digits than its factorization.

67438083477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34328.

The product of its (nonzero) digits is 18966528, while the sum is 57.

Subtracting 67438083477 from its reverse (77438083476), we obtain a palindrome (9999999999).

The spelling of 67438083477 in words is "sixty-seven billion, four hundred thirty-eight million, eighty-three thousand, four hundred seventy-seven".