9405855064128 has 112 divisors (see below), whose sum is σ = 25802281119744. Its totient is φ = 3020780075520.

The previous prime is 9405855064121. The next prime is 9405855064189. The reversal of 9405855064128 is 8214605585049.

It is not an unprimeable number, because it can be changed into a prime (9405855064121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2129700 + ... + 4831907.

Almost surely, 2^{9405855064128} is an apocalyptic number.

It is an amenable number.

9405855064128 is an abundant number, since it is smaller than the sum of its proper divisors (16396426055616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9405855064128 is a wasteful number, since it uses less digits than its factorization.

9405855064128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6961880 (or 6961870 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 57.

The spelling of 9405855064128 in words is "nine trillion, four hundred five billion, eight hundred fifty-five million, sixty-four thousand, one hundred twenty-eight".