219948913963872 has 120 divisors (see below), whose sum is σ = 647468765420400. Its totient is φ = 73247719723776.

The previous prime is 219948913963853. The next prime is 219948913963951. The reversal of 219948913963872 is 278369319849912.

219948913963872 is a `hidden beast` number, since 2 + 1 + 9 + 9 + 48 + 91 + 396 + 38 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a junction number, because it is equal to n+sod(n) for n = 219948913963791 and 219948913963800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36918972 + ... + 42460667.

It is an arithmetic number, because the mean of its divisors is an integer number (5395573045170).

Almost surely, 2^{219948913963872} is an apocalyptic number.

It is an amenable number.

219948913963872 is an abundant number, since it is smaller than the sum of its proper divisors (427519851456528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

219948913963872 is a wasteful number, since it uses less digits than its factorization.

219948913963872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79380730 (or 79380713 counting only the distinct ones).

The product of its digits is 2539579392, while the sum is 81.

The spelling of 219948913963872 in words is "two hundred nineteen trillion, nine hundred forty-eight billion, nine hundred thirteen million, nine hundred sixty-three thousand, eight hundred seventy-two".