6648912293 has 4 divisors (see below), whose sum is σ = 6790378560. Its totient is φ = 6507446028.

The previous prime is 6648912253. The next prime is 6648912397. The reversal of 6648912293 is 3922198466.

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 6648912293 - 2²⁶ = 6581803429 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 (6648912253) 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, 70733063 + ... + 70733156.

It is an arithmetic number, because the mean of its divisors is an integer number (1697594640).

Almost surely, 2^6648912293 is an apocalyptic number.

It is an amenable number.

6648912293 is a deficient number, since it is larger than the sum of its proper divisors (141466267).

6648912293 is a wasteful number, since it uses less digits than its factorization.

6648912293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141466266.

The product of its digits is 1119744, while the sum is 50.

The square root of 6648912293 is about 81540.8627192526. The cubic root of 6648912293 is about 1880.3998218783.

The spelling of 6648912293 in words is "six billion, six hundred forty-eight million, nine hundred twelve thousand, two hundred ninety-three".