1945773863 has 8 divisors (see below), whose sum is σ = 2123720976. Its totient is φ = 1768003200.

The previous prime is 1945773853. The next prime is 1945773877. The reversal of 1945773863 is 3683775491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1945773863 - 2¹⁰ = 1945772839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945773853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20498 + ... + 65663.

It is an arithmetic number, because the mean of its divisors is an integer number (265465122).

Almost surely, 2^1945773863 is an apocalyptic number.

1945773863 is a deficient number, since it is larger than the sum of its proper divisors (177947113).

1945773863 is a wasteful number, since it uses less digits than its factorization.

1945773863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88225.

The product of its digits is 3810240, while the sum is 53.

The square root of 1945773863 is about 44110.9267982435. The cubic root of 1945773863 is about 1248.4297858078.

The spelling of 1945773863 in words is "one billion, nine hundred forty-five million, seven hundred seventy-three thousand, eight hundred sixty-three".