19886071446050 has 24 divisors (see below), whose sum is σ = 36988612683300. Its totient is φ = 7954316794880.

The previous prime is 19886071446011. The next prime is 19886071446097. The reversal of 19886071446050 is 5064417068891.

It can be written as a sum of positive squares in 6 ways, for example, as 14435569539889 + 5450501906161 = 3799417^2 + 2334631^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 845906 + ... + 6362994.

Almost surely, 2^{19886071446050} is an apocalyptic number.

19886071446050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19886071446050 is a deficient number, since it is larger than the sum of its proper divisors (17102541237250).

19886071446050 is a wasteful number, since it uses less digits than its factorization.

19886071446050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5589190 (or 5589185 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 59.

The spelling of 19886071446050 in words is "nineteen trillion, eight hundred eighty-six billion, seventy-one million, four hundred forty-six thousand, fifty".