2069901865 has 8 divisors (see below), whose sum is σ = 2491819848. Its totient is φ = 1650629760.

The previous prime is 2069901811. The next prime is 2069901877. The reversal of 2069901865 is 5681099602.

It can be written as a sum of positive squares in 4 ways, for example, as 246270249 + 1823631616 = 15693^2 + 42704^2 .

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

It is not a de Polignac number, because 2069901865 - 2²⁷ = 1935684137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 659746 + ... + 662875.

It is an arithmetic number, because the mean of its divisors is an integer number (311477481).

Almost surely, 2^2069901865 is an apocalyptic number.

It is an amenable number.

2069901865 is a deficient number, since it is larger than the sum of its proper divisors (421917983).

2069901865 is a wasteful number, since it uses less digits than its factorization.

2069901865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322939.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 2069901865 is about 45496.1741798143. The cubic root of 2069901865 is about 1274.4317580613.

The spelling of 2069901865 in words is "two billion, sixty-nine million, nine hundred one thousand, eight hundred sixty-five".