67439238983 has 2 divisors, whose sum is σ = 67439238984. Its totient is φ = 67439238982.

The previous prime is 67439238949. The next prime is 67439239009. The reversal of 67439238983 is 38983293476.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67439238983 - 2¹² = 67439234887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67439238583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33719619491 + 33719619492.

It is an arithmetic number, because the mean of its divisors is an integer number (33719619492).

Almost surely, 2^67439238983 is an apocalyptic number.

67439238983 is a deficient number, since it is larger than the sum of its proper divisors (1).

67439238983 is an equidigital number, since it uses as much as digits as its factorization.

67439238983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47029248, while the sum is 62.

The spelling of 67439238983 in words is "sixty-seven billion, four hundred thirty-nine million, two hundred thirty-eight thousand, nine hundred eighty-three".