2643497213 has 8 divisors (see below), whose sum is σ = 3021966528. Its totient is φ = 2265234624.

The previous prime is 2643497191. The next prime is 2643497221. The reversal of 2643497213 is 3127943462.

2643497213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2643497213 - 2⁶ = 2643497149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643497273) 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, 23231 + ... + 76332.

It is an arithmetic number, because the mean of its divisors is an integer number (377745816).

Almost surely, 2^2643497213 is an apocalyptic number.

It is an amenable number.

2643497213 is a deficient number, since it is larger than the sum of its proper divisors (378469315).

2643497213 is an equidigital number, since it uses as much as digits as its factorization.

2643497213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103363.

The product of its digits is 217728, while the sum is 41.

The square root of 2643497213 is about 51414.9512593370. The cubic root of 2643497213 is about 1382.6946601019.

The spelling of 2643497213 in words is "two billion, six hundred forty-three million, four hundred ninety-seven thousand, two hundred thirteen".