9697989240577 has 4 divisors (see below), whose sum is σ = 10579624626096. Its totient is φ = 8816353855060.

The previous prime is 9697989240571. The next prime is 9697989240619. The reversal of 9697989240577 is 7750429897969.

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 a de Polignac number, because none of the positive numbers 2^k-9697989240577 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9697989240577.

It is not an unprimeable number, because it can be changed into a prime (9697989240571) 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, 440817692743 + ... + 440817692764.

It is an arithmetic number, because the mean of its divisors is an integer number (2644906156524).

Almost surely, 2^{9697989240577} is an apocalyptic number.

It is an amenable number.

9697989240577 is a deficient number, since it is larger than the sum of its proper divisors (881635385519).

9697989240577 is a wasteful number, since it uses less digits than its factorization.

9697989240577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881635385518.

The product of its (nonzero) digits is 4320812160, while the sum is 82.

The spelling of 9697989240577 in words is "nine trillion, six hundred ninety-seven billion, nine hundred eighty-nine million, two hundred forty thousand, five hundred seventy-seven".