9669878945055 has 48 divisors (see below), whose sum is σ = 19192196375040. Its totient is φ = 4412063784384.

The previous prime is 9669878944969. The next prime is 9669878945099. The reversal of 9669878945055 is 5505498789669.

9669878945055 is a `hidden beast` number, since 9 + 6 + 6 + 9 + 87 + 89 + 450 + 5 + 5 = 666.

It is not a de Polignac number, because 9669878945055 - 2⁷ = 9669878944927 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 29183275 + ... + 29512764.

It is an arithmetic number, because the mean of its divisors is an integer number (399837424480).

Almost surely, 2^{9669878945055} is an apocalyptic number.

9669878945055 is a deficient number, since it is larger than the sum of its proper divisors (9522317429985).

9669878945055 is a wasteful number, since it uses less digits than its factorization.

9669878945055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58696580 (or 58696577 counting only the distinct ones).

The product of its (nonzero) digits is 5878656000, while the sum is 81.

The spelling of 9669878945055 in words is "nine trillion, six hundred sixty-nine billion, eight hundred seventy-eight million, nine hundred forty-five thousand, fifty-five".