2648640063 has 4 divisors (see below), whose sum is σ = 3531520088. Its totient is φ = 1765760040.

The previous prime is 2648640061. The next prime is 2648640067. The reversal of 2648640063 is 3600468462.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2648640063 - 2¹ = 2648640061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2648640061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441440008 + ... + 441440013.

It is an arithmetic number, because the mean of its divisors is an integer number (882880022).

Almost surely, 2^2648640063 is an apocalyptic number.

2648640063 is a deficient number, since it is larger than the sum of its proper divisors (882880025).

2648640063 is an equidigital number, since it uses as much as digits as its factorization.

2648640063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882880024.

The product of its (nonzero) digits is 165888, while the sum is 39.

The square root of 2648640063 is about 51464.9401340369. The cubic root of 2648640063 is about 1383.5907438660.

The spelling of 2648640063 in words is "two billion, six hundred forty-eight million, six hundred forty thousand, sixty-three".