1941894873 has 6 divisors (see below), whose sum is σ = 2804959274. Its totient is φ = 1294596576.

The previous prime is 1941894863. The next prime is 1941894893. The reversal of 1941894873 is 3784981491.

It can be written as a sum of positive squares in only one way, i.e., 1855627929 + 86266944 = 43077^2 + 9288^2 .

It is not a de Polignac number, because 1941894873 - 2¹⁷ = 1941763801 is a prime.

It is a super-2 number, since 2×1941894873² = 7541911395567372258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1941894803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 107883040 + ... + 107883057.

Almost surely, 2^1941894873 is an apocalyptic number.

It is an amenable number.

1941894873 is a deficient number, since it is larger than the sum of its proper divisors (863064401).

1941894873 is a wasteful number, since it uses less digits than its factorization.

1941894873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215766103 (or 215766100 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 1941894873 is about 44066.9362788020. The cubic root of 1941894873 is about 1247.5996331149.

The spelling of 1941894873 in words is "one billion, nine hundred forty-one million, eight hundred ninety-four thousand, eight hundred seventy-three".