905128796219 has 2 divisors, whose sum is σ = 905128796220. Its totient is φ = 905128796218.

The previous prime is 905128796189. The next prime is 905128796233. The reversal of 905128796219 is 912697821509.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 905128796219 - 2²⁸ = 904860360763 is a prime.

It is a super-2 number, since 2×905128796219² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (905128790219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452564398109 + 452564398110.

It is an arithmetic number, because the mean of its divisors is an integer number (452564398110).

Almost surely, 2^905128796219 is an apocalyptic number.

905128796219 is a deficient number, since it is larger than the sum of its proper divisors (1).

905128796219 is an equidigital number, since it uses as much as digits as its factorization.

905128796219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 59.

The spelling of 905128796219 in words is "nine hundred five billion, one hundred twenty-eight million, seven hundred ninety-six thousand, two hundred nineteen".