2809064986 has 16 divisors (see below), whose sum is σ = 5185966464. Its totient is φ = 1111278384.

The previous prime is 2809064983. The next prime is 2809064987. The reversal of 2809064986 is 6894609082.

It is not an unprimeable number, because it can be changed into a prime (2809064983) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7717030 + ... + 7717393.

It is an arithmetic number, because the mean of its divisors is an integer number (324122904).

Almost surely, 2^2809064986 is an apocalyptic number.

2809064986 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2809064986 is a deficient number, since it is larger than the sum of its proper divisors (2376901478).

2809064986 is a wasteful number, since it uses less digits than its factorization.

2809064986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15434445.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The square root of 2809064986 is about 53000.6130719259. The cubic root of 2809064986 is about 1410.9791475335.

The spelling of 2809064986 in words is "two billion, eight hundred nine million, sixty-four thousand, nine hundred eighty-six".