2179421674 has 8 divisors (see below), whose sum is σ = 3273116868. Its totient is φ = 1088382720.

The previous prime is 2179421663. The next prime is 2179421677. The reversal of 2179421674 is 4761249712.

It can be written as a sum of positive squares in 2 ways, for example, as 2172212449 + 7209225 = 46607^2 + 2685^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2179421674.

It is not an unprimeable number, because it can be changed into a prime (2179421677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662007 + ... + 665290.

Almost surely, 2^2179421674 is an apocalyptic number.

2179421674 is a deficient number, since it is larger than the sum of its proper divisors (1093695194).

2179421674 is a wasteful number, since it uses less digits than its factorization.

2179421674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328120.

The product of its digits is 169344, while the sum is 43.

The square root of 2179421674 is about 46684.2765179027. The cubic root of 2179421674 is about 1296.5235863415.

The spelling of 2179421674 in words is "two billion, one hundred seventy-nine million, four hundred twenty-one thousand, six hundred seventy-four".