9906778275843 has 16 divisors (see below), whose sum is σ = 13326152545440. Its totient is φ = 6545963364864.

The previous prime is 9906778275827. The next prime is 9906778275887. The reversal of 9906778275843 is 3485728776099.

It is not a de Polignac number, because 9906778275843 - 2⁴ = 9906778275827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9906778225843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23763705 + ... + 24176997.

It is an arithmetic number, because the mean of its divisors is an integer number (832884534090).

Almost surely, 2^{9906778275843} is an apocalyptic number.

9906778275843 is a deficient number, since it is larger than the sum of its proper divisors (3419374269597).

9906778275843 is a wasteful number, since it uses less digits than its factorization.

9906778275843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484118.

The product of its (nonzero) digits is 1280240640, while the sum is 75.

The spelling of 9906778275843 in words is "nine trillion, nine hundred six billion, seven hundred seventy-eight million, two hundred seventy-five thousand, eight hundred forty-three".