219952591952 has 20 divisors (see below), whose sum is σ = 448587523680. Its totient is φ = 104188069728.

The previous prime is 219952591921. The next prime is 219952592021. The reversal of 219952591952 is 259195259912.

It is a junction number, because it is equal to n+sod(n) for n = 219952591891 and 219952591900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361763828 + ... + 361764435.

It is an arithmetic number, because the mean of its divisors is an integer number (22429376184).

Almost surely, 2^219952591952 is an apocalyptic number.

It is an amenable number.

219952591952 is an abundant number, since it is smaller than the sum of its proper divisors (228634931728).

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

219952591952 is a wasteful number, since it uses less digits than its factorization.

219952591952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723528290 (or 723528284 counting only the distinct ones).

The product of its digits is 6561000, while the sum is 59.

The spelling of 219952591952 in words is "two hundred nineteen billion, nine hundred fifty-two million, five hundred ninety-one thousand, nine hundred fifty-two".