65306679481 has 8 divisors (see below), whose sum is σ = 69808201344. Its totient is φ = 60943666080.

The previous prime is 65306679479. The next prime is 65306679509. The reversal of 65306679481 is 18497660356.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65306679481 - 2¹ = 65306679479 is a prime.

It is a super-2 number, since 2×65306679481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65306677481) 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 7 ways as a sum of consecutive naturals, for example, 34626141 + ... + 34628026.

It is an arithmetic number, because the mean of its divisors is an integer number (8726025168).

Almost surely, 2^65306679481 is an apocalyptic number.

It is an amenable number.

65306679481 is a deficient number, since it is larger than the sum of its proper divisors (4501521863).

65306679481 is a wasteful number, since it uses less digits than its factorization.

65306679481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69254231.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 65306679481 in words is "sixty-five billion, three hundred six million, six hundred seventy-nine thousand, four hundred eighty-one".