64621670411 has 2 divisors, whose sum is σ = 64621670412. Its totient is φ = 64621670410.

The previous prime is 64621670371. The next prime is 64621670413. The reversal of 64621670411 is 11407612646.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64621670411 is a prime.

Together with 64621670413, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64621670413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32310835205 + 32310835206.

It is an arithmetic number, because the mean of its divisors is an integer number (32310835206).

Almost surely, 2^64621670411 is an apocalyptic number.

64621670411 is a deficient number, since it is larger than the sum of its proper divisors (1).

64621670411 is an equidigital number, since it uses as much as digits as its factorization.

64621670411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 64621670411 in words is "sixty-four billion, six hundred twenty-one million, six hundred seventy thousand, four hundred eleven".