2648690393 has 4 divisors (see below), whose sum is σ = 2710287888. Its totient is φ = 2587092900.

The previous prime is 2648690381. The next prime is 2648690417. The reversal of 2648690393 is 3930968462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2648690393 - 2⁸ = 2648690137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2648690353) 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, 30798683 + ... + 30798768.

It is an arithmetic number, because the mean of its divisors is an integer number (677571972).

Almost surely, 2^2648690393 is an apocalyptic number.

It is an amenable number.

2648690393 is a deficient number, since it is larger than the sum of its proper divisors (61597495).

2648690393 is an equidigital number, since it uses as much as digits as its factorization.

2648690393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61597494.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The square root of 2648690393 is about 51465.4291053713. The cubic root of 2648690393 is about 1383.5995075685.

The spelling of 2648690393 in words is "two billion, six hundred forty-eight million, six hundred ninety thousand, three hundred ninety-three".