60646064389 has 2 divisors, whose sum is σ = 60646064390. Its totient is φ = 60646064388.

The previous prime is 60646064387. The next prime is 60646064441. The reversal of 60646064389 is 98346064606.

It is an a-pointer prime, because the next prime (60646064441) can be obtained adding 60646064389 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40780571364 + 19865493025 = 201942^2 + 140945^2 .

It is a cyclic number.

It is not a de Polignac number, because 60646064389 - 2¹ = 60646064387 is a prime.

Together with 60646064387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60646064387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30323032194 + 30323032195.

It is an arithmetic number, because the mean of its divisors is an integer number (30323032195).

Almost surely, 2^60646064389 is an apocalyptic number.

It is an amenable number.

60646064389 is a deficient number, since it is larger than the sum of its proper divisors (1).

60646064389 is an equidigital number, since it uses as much as digits as its factorization.

60646064389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4478976, while the sum is 52.

The spelling of 60646064389 in words is "sixty billion, six hundred forty-six million, sixty-four thousand, three hundred eighty-nine".