2086149505 has 16 divisors (see below), whose sum is σ = 2753538048. Its totient is φ = 1517194800.

The previous prime is 2086149497. The next prime is 2086149521. The reversal of 2086149505 is 5059416802.

It is not a de Polignac number, because 2086149505 - 2³ = 2086149497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150081 + ... + 163390.

It is an arithmetic number, because the mean of its divisors is an integer number (172096128).

Almost surely, 2^2086149505 is an apocalyptic number.

It is an amenable number.

2086149505 is a deficient number, since it is larger than the sum of its proper divisors (667388543).

2086149505 is an equidigital number, since it uses as much as digits as its factorization.

2086149505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313509 (or 313487 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 2086149505 is about 45674.3856554196. The cubic root of 2086149505 is about 1277.7576105884.

The spelling of 2086149505 in words is "two billion, eighty-six million, one hundred forty-nine thousand, five hundred five".