2124173728 has 12 divisors (see below), whose sum is σ = 4181967090. Its totient is φ = 1062086848.

The previous prime is 2124173707. The next prime is 2124173741. The reversal of 2124173728 is 8273714212.

It can be written as a sum of positive squares in only one way, i.e., 1867276944 + 256896784 = 43212^2 + 16028^2 .

It is a super-2 number, since 2×2124173728² = 9024228053450835968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33190183 + ... + 33190246.

Almost surely, 2^2124173728 is an apocalyptic number.

It is an amenable number.

2124173728 is a deficient number, since it is larger than the sum of its proper divisors (2057793362).

2124173728 is an equidigital number, since it uses as much as digits as its factorization.

2124173728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66380439 (or 66380431 counting only the distinct ones).

The product of its digits is 37632, while the sum is 37.

The square root of 2124173728 is about 46088.7592369333. The cubic root of 2124173728 is about 1285.4741401596.

The spelling of 2124173728 in words is "two billion, one hundred twenty-four million, one hundred seventy-three thousand, seven hundred twenty-eight".