65707457743 has 4 divisors (see below), whose sum is σ = 65732283760. Its totient is φ = 65682631728.

The previous prime is 65707457737. The next prime is 65707457791. The reversal of 65707457743 is 34775470756.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65707457743 is a prime.

It is a super-3 number, since 3×65707457743³ (a number of 33 digits) contains 333 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 (65707457713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12409038 + ... + 12414331.

It is an arithmetic number, because the mean of its divisors is an integer number (16433070940).

Almost surely, 2^65707457743 is an apocalyptic number.

65707457743 is a deficient number, since it is larger than the sum of its proper divisors (24826017).

65707457743 is a wasteful number, since it uses less digits than its factorization.

65707457743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24826016.

The product of its (nonzero) digits is 17287200, while the sum is 55.

The spelling of 65707457743 in words is "sixty-five billion, seven hundred seven million, four hundred fifty-seven thousand, seven hundred forty-three".