64333983019 has 2 divisors, whose sum is σ = 64333983020. Its totient is φ = 64333983018.

The previous prime is 64333983011. The next prime is 64333983113. The reversal of 64333983019 is 91038933346.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64333983019 - 2³ = 64333983011 is a prime.

It is a super-2 number, since 2×64333983019² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64333983011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32166991509 + 32166991510.

It is an arithmetic number, because the mean of its divisors is an integer number (32166991510).

Almost surely, 2^64333983019 is an apocalyptic number.

64333983019 is a deficient number, since it is larger than the sum of its proper divisors (1).

64333983019 is an equidigital number, since it uses as much as digits as its factorization.

64333983019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 49.

The spelling of 64333983019 in words is "sixty-four billion, three hundred thirty-three million, nine hundred eighty-three thousand, nineteen".