2159345450 has 12 divisors (see below), whose sum is σ = 4016382630. Its totient is φ = 863738160.

The previous prime is 2159345431. The next prime is 2159345477. The reversal of 2159345450 is 545439512.

2159345450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1524355849 + 634989601 = 39043^2 + 25199^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21593405 + ... + 21593504.

Almost surely, 2^2159345450 is an apocalyptic number.

2159345450 is a deficient number, since it is larger than the sum of its proper divisors (1857037180).

2159345450 is a wasteful number, since it uses less digits than its factorization.

2159345450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43186921 (or 43186916 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 2159345450 is about 46468.7577841285. The cubic root of 2159345450 is about 1292.5302281215.

The spelling of 2159345450 in words is "two billion, one hundred fifty-nine million, three hundred forty-five thousand, four hundred fifty".