65350454709 has 4 divisors (see below), whose sum is σ = 87133939616.
Its totient is φ = 43566969804.
The previous prime is 65350454641. The next prime is 65350454717. The reversal of 65350454709 is 90745405356.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is not a de Polignac number, because 65350454709 - 28 = 65350454453 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (65350454779) 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, 10891742449 + ... + 10891742454.
It is an arithmetic number, because the mean of its divisors is an integer number (21783484904).
Almost surely, 265350454709 is an apocalyptic number.
It is an amenable number.
65350454709 is a deficient number, since it is larger than the sum of its proper divisors (21783484907).
65350454709 is a wasteful number, since it uses less digits than its factorization.
65350454709 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21783484906.
The product of its (nonzero) digits is 2268000, while the sum is 48.
The spelling of 65350454709 in words is "sixty-five billion, three hundred fifty million, four hundred fifty-four thousand, seven hundred nine".