215710495073 has 8 divisors (see below), whose sum is σ = 219810969000. Its totient is φ = 211611149568.

The previous prime is 215710495061. The next prime is 215710495127. The reversal of 215710495073 is 370594017512.

It can be written as a sum of positive squares in 4 ways, for example, as 84266542369 + 131443952704 = 290287^2 + 362552^2 .

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 215710495073 - 2¹⁶ = 215710429537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215710695073) 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, 108953 + ... + 665801.

It is an arithmetic number, because the mean of its divisors is an integer number (27476371125).

Almost surely, 2^215710495073 is an apocalyptic number.

It is an amenable number.

215710495073 is a deficient number, since it is larger than the sum of its proper divisors (4100473927).

215710495073 is an equidigital number, since it uses as much as digits as its factorization.

215710495073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564211.

The product of its (nonzero) digits is 264600, while the sum is 44.

The spelling of 215710495073 in words is "two hundred fifteen billion, seven hundred ten million, four hundred ninety-five thousand, seventy-three".