219649249952 has 24 divisors (see below), whose sum is σ = 471746685312. Its totient is φ = 99840568000.

The previous prime is 219649249891. The next prime is 219649249957. The reversal of 219649249952 is 259942946912.

It is not an unprimeable number, because it can be changed into a prime (219649249957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312001424 + ... + 312002127.

It is an arithmetic number, because the mean of its divisors is an integer number (19656111888).

Almost surely, 2^219649249952 is an apocalyptic number.

219649249952 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

219649249952 is an abundant number, since it is smaller than the sum of its proper divisors (252097435360).

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

219649249952 is a wasteful number, since it uses less digits than its factorization.

219649249952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624003572 (or 624003564 counting only the distinct ones).

The product of its digits is 25194240, while the sum is 62.

The spelling of 219649249952 in words is "two hundred nineteen billion, six hundred forty-nine million, two hundred forty-nine thousand, nine hundred fifty-two".