67476960389 has 2 divisors, whose sum is σ = 67476960390. Its totient is φ = 67476960388.

The previous prime is 67476960377. The next prime is 67476960403. The reversal of 67476960389 is 98306967476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66036150625 + 1440809764 = 256975^2 + 37958^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67476960389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67476960289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33738480194 + 33738480195.

It is an arithmetic number, because the mean of its divisors is an integer number (33738480195).

Almost surely, 2^67476960389 is an apocalyptic number.

It is an amenable number.

67476960389 is a deficient number, since it is larger than the sum of its proper divisors (1).

67476960389 is an equidigital number, since it uses as much as digits as its factorization.

67476960389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82301184, while the sum is 65.

The spelling of 67476960389 in words is "sixty-seven billion, four hundred seventy-six million, nine hundred sixty thousand, three hundred eighty-nine".