2942008691 has 4 divisors (see below), whose sum is σ = 2947905000. Its totient is φ = 2936112384.

The previous prime is 2942008681. The next prime is 2942008703. The reversal of 2942008691 is 1968002492.

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

It is a cyclic number.

It is not a de Polignac number, because 2942008691 - 2¹⁰ = 2942007667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2942008631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2947406 + ... + 2948403.

It is an arithmetic number, because the mean of its divisors is an integer number (736976250).

Almost surely, 2^2942008691 is an apocalyptic number.

2942008691 is a deficient number, since it is larger than the sum of its proper divisors (5896309).

2942008691 is an equidigital number, since it uses as much as digits as its factorization.

2942008691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5896308.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 2942008691 is about 54240.2866050687. The cubic root of 2942008691 is about 1432.8959344226.

The spelling of 2942008691 in words is "two billion, nine hundred forty-two million, eight thousand, six hundred ninety-one".