1945546168 has 8 divisors (see below), whose sum is σ = 3647899080. Its totient is φ = 972773080.

The previous prime is 1945546129. The next prime is 1945546177. The reversal of 1945546168 is 8616455491.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121596628 + ... + 121596643.

It is an arithmetic number, because the mean of its divisors is an integer number (455987385).

Almost surely, 2^1945546168 is an apocalyptic number.

It is an amenable number.

1945546168 is a deficient number, since it is larger than the sum of its proper divisors (1702352912).

1945546168 is a wasteful number, since it uses less digits than its factorization.

1945546168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243193277 (or 243193273 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 49.

The square root of 1945546168 is about 44108.3457862568. The cubic root of 1945546168 is about 1248.3810867076.

The spelling of 1945546168 in words is "one billion, nine hundred forty-five million, five hundred forty-six thousand, one hundred sixty-eight".