219957403485 has 16 divisors (see below), whose sum is σ = 359419758336. Its totient is φ = 114814644288.

The previous prime is 219957403451. The next prime is 219957403499. The reversal of 219957403485 is 584304759912.

It is not a de Polignac number, because 219957403485 - 2³⁵ = 185597665117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155997454 + ... + 155998863.

It is an arithmetic number, because the mean of its divisors is an integer number (22463734896).

Almost surely, 2^219957403485 is an apocalyptic number.

It is an amenable number.

219957403485 is a deficient number, since it is larger than the sum of its proper divisors (139462354851).

219957403485 is a wasteful number, since it uses less digits than its factorization.

219957403485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311996372.

The product of its (nonzero) digits is 10886400, while the sum is 57.

The spelling of 219957403485 in words is "two hundred nineteen billion, nine hundred fifty-seven million, four hundred three thousand, four hundred eighty-five".