2019870453 has 16 divisors (see below), whose sum is σ = 2921135616. Its totient is φ = 1236456960.

The previous prime is 2019870451. The next prime is 2019870467. The reversal of 2019870453 is 3540789102.

It is not a de Polignac number, because 2019870453 - 2¹ = 2019870451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2019870451) 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 15 ways as a sum of consecutive naturals, for example, 480901 + ... + 485082.

It is an arithmetic number, because the mean of its divisors is an integer number (182570976).

Almost surely, 2^2019870453 is an apocalyptic number.

It is an amenable number.

2019870453 is a deficient number, since it is larger than the sum of its proper divisors (901265163).

2019870453 is a wasteful number, since it uses less digits than its factorization.

2019870453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966044.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 2019870453 is about 44942.9688939215. The cubic root of 2019870453 is about 1264.0798409766.

The spelling of 2019870453 in words is "two billion, nineteen million, eight hundred seventy thousand, four hundred fifty-three".