209110381948 has 12 divisors (see below), whose sum is σ = 394092643000. Its totient is φ = 96512483952.

The previous prime is 209110381933. The next prime is 209110381967. The reversal of 209110381948 is 849183011902.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 209110381898 and 209110381907.

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 3 ways as a sum of consecutive naturals, for example, 2010676698 + ... + 2010676801.

Almost surely, 2^209110381948 is an apocalyptic number.

It is an amenable number.

209110381948 is a deficient number, since it is larger than the sum of its proper divisors (184982261052).

209110381948 is a wasteful number, since it uses less digits than its factorization.

209110381948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4021353516 (or 4021353514 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 46.

The spelling of 209110381948 in words is "two hundred nine billion, one hundred ten million, three hundred eighty-one thousand, nine hundred forty-eight".