219909513972 has 24 divisors (see below), whose sum is σ = 513132302592. Its totient is φ = 73301728000.

The previous prime is 219909513961. The next prime is 219909513973. The reversal of 219909513972 is 279315909912.

219909513972 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219909513973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583972 + ... + 883652.

It is an arithmetic number, because the mean of its divisors is an integer number (21380512608).

Almost surely, 2^219909513972 is an apocalyptic number.

It is an amenable number.

219909513972 is an abundant number, since it is smaller than the sum of its proper divisors (293222788620).

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

219909513972 is a wasteful number, since it uses less digits than its factorization.

219909513972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360839 (or 360837 counting only the distinct ones).

The product of its (nonzero) digits is 2755620, while the sum is 57.

The spelling of 219909513972 in words is "two hundred nineteen billion, nine hundred nine million, five hundred thirteen thousand, nine hundred seventy-two".