215043683613 has 64 divisors (see below), whose sum is σ = 329699994624. Its totient is φ = 123481152000.

The previous prime is 215043683597. The next prime is 215043683641. The reversal of 215043683613 is 316386340512.

It is not a de Polignac number, because 215043683613 - 2⁴ = 215043683597 is a prime.

It is a super-3 number, since 3×215043683613³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215043683213) 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 63 ways as a sum of consecutive naturals, for example, 28581070 + ... + 28588592.

It is an arithmetic number, because the mean of its divisors is an integer number (5151562416).

Almost surely, 2^215043683613 is an apocalyptic number.

It is an amenable number.

215043683613 is a deficient number, since it is larger than the sum of its proper divisors (114656311011).

215043683613 is a wasteful number, since it uses less digits than its factorization.

215043683613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8186.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 215043683613 in words is "two hundred fifteen billion, forty-three million, six hundred eighty-three thousand, six hundred thirteen".