478421222519 has 2 divisors, whose sum is σ = 478421222520. Its totient is φ = 478421222518.

The previous prime is 478421222329. The next prime is 478421222551. The reversal of 478421222519 is 915222124874.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478421222519 is a prime.

It is a super-2 number, since 2×478421222519² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478421227519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239210611259 + 239210611260.

It is an arithmetic number, because the mean of its divisors is an integer number (239210611260).

Almost surely, 2^478421222519 is an apocalyptic number.

478421222519 is a deficient number, since it is larger than the sum of its proper divisors (1).

478421222519 is an equidigital number, since it uses as much as digits as its factorization.

478421222519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 645120, while the sum is 47.

The spelling of 478421222519 in words is "four hundred seventy-eight billion, four hundred twenty-one million, two hundred twenty-two thousand, five hundred nineteen".