65490210807349 has 4 divisors (see below), whose sum is σ = 65541017799180. Its totient is φ = 65439403815520.

The previous prime is 65490210807257. The next prime is 65490210807379. The reversal of 65490210807349 is 94370801209456.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41796612900900 + 23693597906449 = 6465030^2 + 4867607^2 .

It is a cyclic number.

It is not a de Polignac number, because 65490210807349 - 2⁷ = 65490210807221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65490210807293 and 65490210807302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65490210807379) 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 in 3 ways as a sum of consecutive naturals, for example, 25403493982 + ... + 25403496559.

It is an arithmetic number, because the mean of its divisors is an integer number (16385254449795).

It is a 1-persistent number, because it is pandigital, but 2⋅65490210807349 = 130980421614698 is not.

Almost surely, 2^{65490210807349} is an apocalyptic number.

It is an amenable number.

65490210807349 is a deficient number, since it is larger than the sum of its proper divisors (50806991831).

65490210807349 is a wasteful number, since it uses less digits than its factorization.

65490210807349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50806991830.

The product of its (nonzero) digits is 13063680, while the sum is 58.

The spelling of 65490210807349 in words is "sixty-five trillion, four hundred ninety billion, two hundred ten million, eight hundred seven thousand, three hundred forty-nine".