2086139456 has 14 divisors (see below), whose sum is σ = 4139683110. Its totient is φ = 1043069696.

The previous prime is 2086139437. The next prime is 2086139483. The reversal of 2086139456 is 6549316802.

It can be written as a sum of positive squares in only one way, i.e., 1987733056 + 98406400 = 44584^2 + 9920^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16297901 + ... + 16298028.

Almost surely, 2^2086139456 is an apocalyptic number.

It is an amenable number.

2086139456 is a deficient number, since it is larger than the sum of its proper divisors (2053543654).

2086139456 is an equidigital number, since it uses as much as digits as its factorization.

2086139456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32595941 (or 32595931 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 2086139456 is about 45674.2756483340. The cubic root of 2086139456 is about 1277.7555589286.

The spelling of 2086139456 in words is "two billion, eighty-six million, one hundred thirty-nine thousand, four hundred fifty-six".