9557220628775 has 6 divisors (see below), whose sum is σ = 11850953579712. Its totient is φ = 7645776503000.

The previous prime is 9557220628751. The next prime is 9557220628811. The reversal of 9557220628775 is 5778260227559.

It is not a de Polignac number, because 9557220628775 - 2¹⁴ = 9557220612391 is a prime.

It is a super-2 number, since 2×9557220628775² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 191144412551 + ... + 191144412600.

It is an arithmetic number, because the mean of its divisors is an integer number (1975158929952).

Almost surely, 2^{9557220628775} is an apocalyptic number.

9557220628775 is a deficient number, since it is larger than the sum of its proper divisors (2293732950937).

9557220628775 is a wasteful number, since it uses less digits than its factorization.

9557220628775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382288825161 (or 382288825156 counting only the distinct ones).

The product of its (nonzero) digits is 148176000, while the sum is 65.

The spelling of 9557220628775 in words is "nine trillion, five hundred fifty-seven billion, two hundred twenty million, six hundred twenty-eight thousand, seven hundred seventy-five".