65377321519 has 2 divisors, whose sum is σ = 65377321520. Its totient is φ = 65377321518.

The previous prime is 65377321517. The next prime is 65377321547. The reversal of 65377321519 is 91512377356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65377321519 - 2¹ = 65377321517 is a prime.

It is a super-2 number, since 2×65377321519² (a number of 22 digits) contains 22 as substring.

Together with 65377321517, 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 (65377321517) 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, 32688660759 + 32688660760.

It is an arithmetic number, because the mean of its divisors is an integer number (32688660760).

Almost surely, 2^65377321519 is an apocalyptic number.

65377321519 is a deficient number, since it is larger than the sum of its proper divisors (1).

65377321519 is an equidigital number, since it uses as much as digits as its factorization.

65377321519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1190700, while the sum is 49.

The spelling of 65377321519 in words is "sixty-five billion, three hundred seventy-seven million, three hundred twenty-one thousand, five hundred nineteen".