65047619489 has 2 divisors, whose sum is σ = 65047619490. Its totient is φ = 65047619488.

The previous prime is 65047619477. The next prime is 65047619557. The reversal of 65047619489 is 98491674056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40152144400 + 24895475089 = 200380^2 + 157783^2 .

It is a cyclic number.

It is not a de Polignac number, because 65047619489 - 2⁴ = 65047619473 is a prime.

It is a super-2 number, since 2×65047619489² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65047619449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32523809744 + 32523809745.

It is an arithmetic number, because the mean of its divisors is an integer number (32523809745).

Almost surely, 2^65047619489 is an apocalyptic number.

It is an amenable number.

65047619489 is a deficient number, since it is larger than the sum of its proper divisors (1).

65047619489 is an equidigital number, since it uses as much as digits as its factorization.

65047619489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13063680, while the sum is 59.

The spelling of 65047619489 in words is "sixty-five billion, forty-seven million, six hundred nineteen thousand, four hundred eighty-nine".