1854947473 has 2 divisors, whose sum is σ = 1854947474. Its totient is φ = 1854947472.

The previous prime is 1854947443. The next prime is 1854947513. The reversal of 1854947473 is 3747494581.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1630786689 + 224160784 = 40383^2 + 14972^2 .

It is a cyclic number.

It is not a de Polignac number, because 1854947473 - 2⁵ = 1854947441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1854947473.

It is not a weakly prime, because it can be changed into another prime (1854947443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 927473736 + 927473737.

It is an arithmetic number, because the mean of its divisors is an integer number (927473737).

Almost surely, 2^1854947473 is an apocalyptic number.

It is an amenable number.

1854947473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1854947473 is an equidigital number, since it uses as much as digits as its factorization.

1854947473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386880, while the sum is 52.

The square root of 1854947473 is about 43069.1011399124. The cubic root of 1854947473 is about 1228.6943805707.

The spelling of 1854947473 in words is "one billion, eight hundred fifty-four million, nine hundred forty-seven thousand, four hundred seventy-three".