2643048961 has 8 divisors (see below), whose sum is σ = 3031534400. Its totient is φ = 2257290288.

The previous prime is 2643048953. The next prime is 2643048971. The reversal of 2643048961 is 1698403462.

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 2643048961 - 2³ = 2643048953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2643048971) 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, 679611 + ... + 683488.

It is an arithmetic number, because the mean of its divisors is an integer number (378941800).

Almost surely, 2^2643048961 is an apocalyptic number.

It is an amenable number.

2643048961 is a deficient number, since it is larger than the sum of its proper divisors (388485439).

2643048961 is a wasteful number, since it uses less digits than its factorization.

2643048961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363383.

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 2643048961 is about 51410.5919145073. The cubic root of 2643048961 is about 1382.6165021880.

The spelling of 2643048961 in words is "two billion, six hundred forty-three million, forty-eight thousand, nine hundred sixty-one".