1852163906 has 8 divisors (see below), whose sum is σ = 2941672140. Its totient is φ = 871606528.

The previous prime is 1852163899. The next prime is 1852163933. The reversal of 1852163906 is 6093612581.

It can be written as a sum of positive squares in 2 ways, for example, as 1479094681 + 373069225 = 38459^2 + 19315^2 .

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

It is a super-2 number, since 2×1852163906² = 6861022269378353672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27237671 + ... + 27237738.

Almost surely, 2^1852163906 is an apocalyptic number.

1852163906 is a deficient number, since it is larger than the sum of its proper divisors (1089508234).

1852163906 is a wasteful number, since it uses less digits than its factorization.

1852163906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54475428.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 1852163906 is about 43036.7738800203. The cubic root of 1852163906 is about 1228.0794727114.

The spelling of 1852163906 in words is "one billion, eight hundred fifty-two million, one hundred sixty-three thousand, nine hundred six".