2648744961 has 8 divisors (see below), whose sum is σ = 3532996800. Its totient is φ = 1765161552.

The previous prime is 2648744939. The next prime is 2648744999. The reversal of 2648744961 is 1694478462.

It is a happy number.

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

It is not a de Polignac number, because 2648744961 - 2²³ = 2640356353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2648744911) 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, 157786 + ... + 173763.

It is an arithmetic number, because the mean of its divisors is an integer number (441624600).

Almost surely, 2^2648744961 is an apocalyptic number.

It is an amenable number.

2648744961 is a deficient number, since it is larger than the sum of its proper divisors (884251839).

2648744961 is a wasteful number, since it uses less digits than its factorization.

2648744961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334215.

The product of its digits is 2322432, while the sum is 51.

The square root of 2648744961 is about 51465.9592449223. The cubic root of 2648744961 is about 1383.6090090867.

The spelling of 2648744961 in words is "two billion, six hundred forty-eight million, seven hundred forty-four thousand, nine hundred sixty-one".