2961267021 has 48 divisors (see below), whose sum is σ = 4596005440. Its totient is φ = 1831714560.

The previous prime is 2961267019. The next prime is 2961267041. The reversal of 2961267021 is 1207621692.

It is not a de Polignac number, because 2961267021 - 2¹ = 2961267019 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2961267041) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 3264450 + ... + 3265356.

Almost surely, 2^2961267021 is an apocalyptic number.

It is an amenable number.

2961267021 is a deficient number, since it is larger than the sum of its proper divisors (1634738419).

2961267021 is a wasteful number, since it uses less digits than its factorization.

2961267021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306 (or 1303 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 2961267021 is about 54417.5249437164. The cubic root of 2961267021 is about 1436.0157063391.

The spelling of 2961267021 in words is "two billion, nine hundred sixty-one million, two hundred sixty-seven thousand, twenty-one".