215104422487 has 2 divisors, whose sum is σ = 215104422488. Its totient is φ = 215104422486.

The previous prime is 215104422473. The next prime is 215104422493. The reversal of 215104422487 is 784224401512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215104422487 - 2⁷ = 215104422359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215104422587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107552211243 + 107552211244.

It is an arithmetic number, because the mean of its divisors is an integer number (107552211244).

Almost surely, 2^215104422487 is an apocalyptic number.

215104422487 is a deficient number, since it is larger than the sum of its proper divisors (1).

215104422487 is an equidigital number, since it uses as much as digits as its factorization.

215104422487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 143360, while the sum is 40.

Adding to 215104422487 its reverse (784224401512), we get a palindrome (999328823999).

The spelling of 215104422487 in words is "two hundred fifteen billion, one hundred four million, four hundred twenty-two thousand, four hundred eighty-seven".