2812661039 has 4 divisors (see below), whose sum is σ = 2860333320. Its totient is φ = 2764988760.

The previous prime is 2812661011. The next prime is 2812661069. The reversal of 2812661039 is 9301662182.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2812661039 is a prime.

It is a super-2 number, since 2×2812661039² = 15822124240617119042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2812660993 and 2812661011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2812661009) 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 3 ways as a sum of consecutive naturals, for example, 23836052 + ... + 23836169.

It is an arithmetic number, because the mean of its divisors is an integer number (715083330).

Almost surely, 2^2812661039 is an apocalyptic number.

2812661039 is a deficient number, since it is larger than the sum of its proper divisors (47672281).

2812661039 is an equidigital number, since it uses as much as digits as its factorization.

2812661039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47672280.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 2812661039 is about 53034.5268575105. The cubic root of 2812661039 is about 1411.5809838742.

The spelling of 2812661039 in words is "two billion, eight hundred twelve million, six hundred sixty-one thousand, thirty-nine".