2086531916 has 18 divisors (see below), whose sum is σ = 4247583228. Its totient is φ = 894227880.

The previous prime is 2086531903. The next prime is 2086531921. The reversal of 2086531916 is 6191356802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5322590 + ... + 5322981.

It is an arithmetic number, because the mean of its divisors is an integer number (235976846).

Almost surely, 2^2086531916 is an apocalyptic number.

It is an amenable number.

2086531916 is an abundant number, since it is smaller than the sum of its proper divisors (2161051312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2086531916 is a wasteful number, since it uses less digits than its factorization.

2086531916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10645589 (or 10645580 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 2086531916 is about 45678.5717377415. The cubic root of 2086531916 is about 1277.8356808498.

The spelling of 2086531916 in words is "two billion, eighty-six million, five hundred thirty-one thousand, nine hundred sixteen".