6288780213 has 6 divisors (see below), whose sum is σ = 9083793654. Its totient is φ = 4192520136.

The previous prime is 6288780191. The next prime is 6288780217. The reversal of 6288780213 is 3120878826.

6288780213 is a `hidden beast` number, since 628 + 8 + 7 + 8 + 0 + 2 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4964329764 + 1324450449 = 70458^2 + 36393^2 .

It is not a de Polignac number, because 6288780213 - 2⁹ = 6288779701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6288780217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 349376670 + ... + 349376687.

It is an arithmetic number, because the mean of its divisors is an integer number (1513965609).

Almost surely, 2^6288780213 is an apocalyptic number.

It is an amenable number.

6288780213 is a deficient number, since it is larger than the sum of its proper divisors (2795013441).

6288780213 is a wasteful number, since it uses less digits than its factorization.

6288780213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698753363 (or 698753360 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 6288780213 is about 79301.8298212595. The cubic root of 6288780213 is about 1845.8176973428.

The spelling of 6288780213 in words is "six billion, two hundred eighty-eight million, seven hundred eighty thousand, two hundred thirteen".