2961965945 has 8 divisors (see below), whose sum is σ = 3556671936. Its totient is φ = 2368030896.

The previous prime is 2961965933. The next prime is 2961965977. The reversal of 2961965945 is 5495691692.

It is a happy number.

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 2961965945 - 2¹⁰ = 2961964921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184247 + ... + 199676.

It is an arithmetic number, because the mean of its divisors is an integer number (444583992).

Almost surely, 2^2961965945 is an apocalyptic number.

It is an amenable number.

2961965945 is a deficient number, since it is larger than the sum of its proper divisors (594705991).

2961965945 is a wasteful number, since it uses less digits than its factorization.

2961965945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385471.

The product of its digits is 5248800, while the sum is 56.

The square root of 2961965945 is about 54423.9464298575. The cubic root of 2961965945 is about 1436.1286745250.

The spelling of 2961965945 in words is "two billion, nine hundred sixty-one million, nine hundred sixty-five thousand, nine hundred forty-five".