1670818273 has 2 divisors, whose sum is σ = 1670818274. Its totient is φ = 1670818272.

The previous prime is 1670818211. The next prime is 1670818301. The reversal of 1670818273 is 3728180761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1620223504 + 50594769 = 40252^2 + 7113^2 .

It is a cyclic number.

It is not a de Polignac number, because 1670818273 - 2¹³ = 1670810081 is a prime.

It is not a weakly prime, because it can be changed into another prime (1670818573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835409136 + 835409137.

It is an arithmetic number, because the mean of its divisors is an integer number (835409137).

Almost surely, 2^1670818273 is an apocalyptic number.

It is an amenable number.

1670818273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1670818273 is an equidigital number, since it uses as much as digits as its factorization.

1670818273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 1670818273 is about 40875.6440071591. The cubic root of 1670818273 is about 1186.6147399303.

The spelling of 1670818273 in words is "one billion, six hundred seventy million, eight hundred eighteen thousand, two hundred seventy-three".