219198657485 has 16 divisors (see below), whose sum is σ = 275347786752. Its totient is φ = 167312006400.

The previous prime is 219198657463. The next prime is 219198657533. The reversal of 219198657485 is 584756891912.

It is not a de Polignac number, because 219198657485 - 2²⁶ = 219131548621 is a prime.

It is a Duffinian number.

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, 9948044 + ... + 9970053.

It is an arithmetic number, because the mean of its divisors is an integer number (17209236672).

Almost surely, 2^219198657485 is an apocalyptic number.

It is an amenable number.

219198657485 is a deficient number, since it is larger than the sum of its proper divisors (56149129267).

219198657485 is a wasteful number, since it uses less digits than its factorization.

219198657485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19918204.

The product of its digits is 43545600, while the sum is 65.

The spelling of 219198657485 in words is "two hundred nineteen billion, one hundred ninety-eight million, six hundred fifty-seven thousand, four hundred eighty-five".