2942161649 has 8 divisors (see below), whose sum is σ = 3362808768. Its totient is φ = 2521599120.

The previous prime is 2942161643. The next prime is 2942161657. The reversal of 2942161649 is 9461612492.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2942161649 - 2²⁰ = 2941113073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2942161643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98639 + ... + 124955.

It is an arithmetic number, because the mean of its divisors is an integer number (420351096).

Almost surely, 2^2942161649 is an apocalyptic number.

It is an amenable number.

2942161649 is a deficient number, since it is larger than the sum of its proper divisors (420647119).

2942161649 is a wasteful number, since it uses less digits than its factorization.

2942161649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42295.

The product of its digits is 186624, while the sum is 44.

The square root of 2942161649 is about 54241.6965903538. The cubic root of 2942161649 is about 1432.9207665607.

The spelling of 2942161649 in words is "two billion, nine hundred forty-two million, one hundred sixty-one thousand, six hundred forty-nine".