65345706487 has 4 divisors (see below), whose sum is σ = 65761921336. Its totient is φ = 64929491640.

The previous prime is 65345706443. The next prime is 65345706511. The reversal of 65345706487 is 78460754356.

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

It is a cyclic number.

It is not a de Polignac number, because 65345706487 - 2³¹ = 63198222839 is a prime.

It is a super-2 number, since 2×65345706487² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65345706427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208107189 + ... + 208107502.

It is an arithmetic number, because the mean of its divisors is an integer number (16440480334).

Almost surely, 2^65345706487 is an apocalyptic number.

65345706487 is a deficient number, since it is larger than the sum of its proper divisors (416214849).

65345706487 is a wasteful number, since it uses less digits than its factorization.

65345706487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416214848.

The product of its (nonzero) digits is 16934400, while the sum is 55.

The spelling of 65345706487 in words is "sixty-five billion, three hundred forty-five million, seven hundred six thousand, four hundred eighty-seven".