215104422473 has 2 divisors, whose sum is σ = 215104422474. Its totient is φ = 215104422472.

The previous prime is 215104422469. The next prime is 215104422487. The reversal of 215104422473 is 374224401512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151218321424 + 63886101049 = 388868^2 + 252757^2 .

It is a cyclic number.

It is not a de Polignac number, because 215104422473 - 2² = 215104422469 is a prime.

It is not a weakly prime, because it can be changed into another prime (215104422413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107552211236 + 107552211237.

It is an arithmetic number, because the mean of its divisors is an integer number (107552211237).

Almost surely, 2^215104422473 is an apocalyptic number.

It is an amenable number.

215104422473 is a deficient number, since it is larger than the sum of its proper divisors (1).

215104422473 is an equidigital number, since it uses as much as digits as its factorization.

215104422473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 35.

Adding to 215104422473 its reverse (374224401512), we get a palindrome (589328823985).

The spelling of 215104422473 in words is "two hundred fifteen billion, one hundred four million, four hundred twenty-two thousand, four hundred seventy-three".