19860983041 has 3 divisors (see below), whose sum is σ = 19861123971. Its totient is φ = 19860842112.

The previous prime is 19860983027. The next prime is 19860983083. The reversal of 19860983041 is 14038906891.

The square root of 19860983041 is 140929.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14038906891 = 11969 ⋅1172939.

It can be written as a sum of positive squares in only one way, i.e., 9432488641 + 10428494400 = 97121^2 + 102120^2 .

It is not a de Polignac number, because 19860983041 - 2⁹ = 19860982529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19860983141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 70465 + ... + 211393.

It is an arithmetic number, because the mean of its divisors is an integer number (6620374657).

Almost surely, 2^19860983041 is an apocalyptic number.

19860983041 is the 140929-th square number.

19860983041 is the 70465-th centered octagonal number.

It is an amenable number.

19860983041 is a deficient number, since it is larger than the sum of its proper divisors (140930).

19860983041 is an frugal number, since it uses more digits than its factorization.

19860983041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281858 (or 140929 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 49.

Multiplying 19860983041 by its sum of digits (49), we get a square (973188169009 = 986503²).

The spelling of 19860983041 in words is "nineteen billion, eight hundred sixty million, nine hundred eighty-three thousand, forty-one".