2179889050 has 12 divisors (see below), whose sum is σ = 4054593726. Its totient is φ = 871955600.

The previous prime is 2179889027. The next prime is 2179889053. The reversal of 2179889050 is 509889712.

It can be written as a sum of positive squares in 3 ways, for example, as 1803955729 + 375933321 = 42473^2 + 19389^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2179888985 and 2179889003.

It is not an unprimeable number, because it can be changed into a prime (2179889053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21798841 + ... + 21798940.

Almost surely, 2^2179889050 is an apocalyptic number.

2179889050 is a deficient number, since it is larger than the sum of its proper divisors (1874704676).

2179889050 is a wasteful number, since it uses less digits than its factorization.

2179889050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43597793 (or 43597788 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 49.

The square root of 2179889050 is about 46689.2819606385. The cubic root of 2179889050 is about 1296.6162593510.

The spelling of 2179889050 in words is "two billion, one hundred seventy-nine million, eight hundred eighty-nine thousand, fifty".