9655426628791 has 8 divisors (see below), whose sum is σ = 9667060977920. Its totient is φ = 9643797340128.

The previous prime is 9655426628789. The next prime is 9655426628839. The reversal of 9655426628791 is 1978266245569.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9655426628791 - 2¹ = 9655426628789 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 9655426628791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9655426728791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2560165 + ... + 5085793.

It is an arithmetic number, because the mean of its divisors is an integer number (1208382622240).

Almost surely, 2^{9655426628791} is an apocalyptic number.

9655426628791 is a deficient number, since it is larger than the sum of its proper divisors (11634349129).

9655426628791 is a wasteful number, since it uses less digits than its factorization.

9655426628791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2530233.

The product of its digits is 391910400, while the sum is 70.

The spelling of 9655426628791 in words is "nine trillion, six hundred fifty-five billion, four hundred twenty-six million, six hundred twenty-eight thousand, seven hundred ninety-one".