1984848943905 has 12 divisors (see below), whose sum is σ = 3440404836180. Its totient is φ = 1058586103392.

The previous prime is 1984848943843. The next prime is 1984848943907. The reversal of 1984848943905 is 5093498484891.

1984848943905 is a `hidden beast` number, since 1 + 9 + 84 + 84 + 89 + 4 + 390 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 443380193424 + 1541468750481 = 665868^2 + 1241559^2 .

It is not a de Polignac number, because 1984848943905 - 2¹⁴ = 1984848927521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1984848943907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22053877110 + ... + 22053877199.

It is an arithmetic number, because the mean of its divisors is an integer number (286700403015).

Almost surely, 2^{1984848943905} is an apocalyptic number.

1984848943905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1984848943905 is a deficient number, since it is larger than the sum of its proper divisors (1455555892275).

1984848943905 is a wasteful number, since it uses less digits than its factorization.

1984848943905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44107754320 (or 44107754317 counting only the distinct ones).

The product of its (nonzero) digits is 358318080, while the sum is 72.

The spelling of 1984848943905 in words is "one trillion, nine hundred eighty-four billion, eight hundred forty-eight million, nine hundred forty-three thousand, nine hundred five".