2019488685 has 16 divisors (see below), whose sum is σ = 3249863424. Its totient is φ = 1070833472.

The previous prime is 2019488683. The next prime is 2019488693. The reversal of 2019488685 is 5868849102.

It is a cyclic number.

It is not a de Polignac number, because 2019488685 - 2¹ = 2019488683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2019488683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386517 + ... + 391706.

It is an arithmetic number, because the mean of its divisors is an integer number (203116464).

Almost surely, 2^2019488685 is an apocalyptic number.

It is an amenable number.

2019488685 is a deficient number, since it is larger than the sum of its proper divisors (1230374739).

2019488685 is a wasteful number, since it uses less digits than its factorization.

2019488685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778404.

The product of its (nonzero) digits is 1105920, while the sum is 51.

The square root of 2019488685 is about 44938.7214437616. The cubic root of 2019488685 is about 1264.0001963243. Note that the first 3 decimals are identical.

The spelling of 2019488685 in words is "two billion, nineteen million, four hundred eighty-eight thousand, six hundred eighty-five".