9677742218509 has 4 divisors (see below), whose sum is σ = 9677799260704. Its totient is φ = 9677685176316.

The previous prime is 9677742218483. The next prime is 9677742218591. The reversal of 9677742218509 is 9058122477769.

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 a cyclic number.

It is not a de Polignac number, because 9677742218509 - 2¹³ = 9677742210317 is a prime.

It is a super-2 number, since 2×9677742218509² (a number of 27 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 (9677742248509) 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, 28265847 + ... + 28606180.

It is an arithmetic number, because the mean of its divisors is an integer number (2419449815176).

Almost surely, 2^{9677742218509} is an apocalyptic number.

It is an amenable number.

9677742218509 is a deficient number, since it is larger than the sum of its proper divisors (57042195).

9677742218509 is a wasteful number, since it uses less digits than its factorization.

9677742218509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57042194.

The product of its (nonzero) digits is 106686720, while the sum is 67.

The spelling of 9677742218509 in words is "nine trillion, six hundred seventy-seven billion, seven hundred forty-two million, two hundred eighteen thousand, five hundred nine".