219828480457 has 8 divisors (see below), whose sum is σ = 220360067784. Its totient is φ = 219297525888.

The previous prime is 219828480427. The next prime is 219828480461. The reversal of 219828480457 is 754084828912.

It can be written as a sum of positive squares in 4 ways, for example, as 55248972601 + 164579507856 = 235051^2 + 405684^2 .

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 219828480457 - 2²³ = 219820091849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (219828480427) 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, 541203 + ... + 855895.

It is an arithmetic number, because the mean of its divisors is an integer number (27545008473).

Almost surely, 2^219828480457 is an apocalyptic number.

It is an amenable number.

219828480457 is a deficient number, since it is larger than the sum of its proper divisors (531587327).

219828480457 is an equidigital number, since it uses as much as digits as its factorization.

219828480457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316379.

The product of its (nonzero) digits is 10321920, while the sum is 58.

The spelling of 219828480457 in words is "two hundred nineteen billion, eight hundred twenty-eight million, four hundred eighty thousand, four hundred fifty-seven".