2159219280 has 80 divisors (see below), whose sum is σ = 7045888320. Its totient is φ = 545485824.

The previous prime is 2159219267. The next prime is 2159219303. The reversal of 2159219280 is 829129512.

It is a tau number, because it is divible by the number of its divisors (80).

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, 232197 + ... + 241316.

It is an arithmetic number, because the mean of its divisors is an integer number (88073604).

Almost surely, 2^2159219280 is an apocalyptic number.

2159219280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2159219280 is an abundant number, since it is smaller than the sum of its proper divisors (4886669040).

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

2159219280 is a wasteful number, since it uses less digits than its factorization.

2159219280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473548 (or 473542 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 2159219280 is about 46467.4001855064. The cubic root of 2159219280 is about 1292.5050535614.

The spelling of 2159219280 in words is "two billion, one hundred fifty-nine million, two hundred nineteen thousand, two hundred eighty".