215130257683 has 8 divisors (see below), whose sum is σ = 235169464320. Its totient is φ = 195171369480.

The previous prime is 215130257669. The next prime is 215130257689. The reversal of 215130257683 is 386752031512.

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 215130257683 - 2⁹ = 215130257171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215130257689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20074003 + ... + 20084716.

It is an arithmetic number, because the mean of its divisors is an integer number (29396183040).

Almost surely, 2^215130257683 is an apocalyptic number.

215130257683 is a deficient number, since it is larger than the sum of its proper divisors (20039206637).

215130257683 is a wasteful number, since it uses less digits than its factorization.

215130257683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40159217.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 215130257683 in words is "two hundred fifteen billion, one hundred thirty million, two hundred fifty-seven thousand, six hundred eighty-three".