9855848540790 has 192 divisors, whose sum is σ = 30801051021312. Its totient is φ = 2138961427200.

The previous prime is 9855848540779. The next prime is 9855848540861. The reversal of 9855848540790 is 970458485589.

9855848540790 is a `hidden beast` number, since 9 + 8 + 5 + 5 + 8 + 4 + 8 + 540 + 79 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3725776 + ... + 5795955.

It is an arithmetic number, because the mean of its divisors is an integer number (160422140736).

Almost surely, 2^{9855848540790} is an apocalyptic number.

9855848540790 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

9855848540790 is an abundant number, since it is smaller than the sum of its proper divisors (20945202480522).

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

9855848540790 is a wasteful number, since it uses less digits than its factorization.

9855848540790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9521835 (or 9521832 counting only the distinct ones).

The product of its (nonzero) digits is 580608000, while the sum is 72.

The spelling of 9855848540790 in words is "nine trillion, eight hundred fifty-five billion, eight hundred forty-eight million, five hundred forty thousand, seven hundred ninety".