2087665019 has 8 divisors (see below), whose sum is σ = 2333000880. Its totient is φ = 1851587200.

The previous prime is 2087665009. The next prime is 2087665061. The reversal of 2087665019 is 9105667802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2087665019 - 2²⁴ = 2070887803 is a prime.

It is a super-2 number, since 2×2087665019² = 8716690463112540722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2087665009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2314034 + ... + 2314935.

It is an arithmetic number, because the mean of its divisors is an integer number (291625110).

Almost surely, 2^2087665019 is an apocalyptic number.

2087665019 is a deficient number, since it is larger than the sum of its proper divisors (245335861).

2087665019 is a wasteful number, since it uses less digits than its factorization.

2087665019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4629021.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 2087665019 is about 45690.9730581436. The cubic root of 2087665019 is about 1278.0669509638.

The spelling of 2087665019 in words is "two billion, eighty-seven million, six hundred sixty-five thousand, nineteen".