2942866805 has 4 divisors (see below), whose sum is σ = 3531440172. Its totient is φ = 2354293440.

The previous prime is 2942866793. The next prime is 2942866837. The reversal of 2942866805 is 5086682492.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2108003569 + 834863236 = 45913^2 + 28894^2 .

It is not a de Polignac number, because 2942866805 - 2⁶ = 2942866741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294286676 + ... + 294286685.

It is an arithmetic number, because the mean of its divisors is an integer number (882860043).

Almost surely, 2^2942866805 is an apocalyptic number.

It is an amenable number.

2942866805 is a deficient number, since it is larger than the sum of its proper divisors (588573367).

2942866805 is an equidigital number, since it uses as much as digits as its factorization.

2942866805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588573366.

The product of its (nonzero) digits is 1658880, while the sum is 50.

The square root of 2942866805 is about 54248.1963294633. The cubic root of 2942866805 is about 1433.0352347741.

The spelling of 2942866805 in words is "two billion, nine hundred forty-two million, eight hundred sixty-six thousand, eight hundred five".