3185989906 has 8 divisors (see below), whose sum is σ = 5213438064. Its totient is φ = 1448177220.

The previous prime is 3185989883. The next prime is 3185989951. The reversal of 3185989906 is 6099895813.

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

It is a super-2 number, since 2×3185989906² = 20301063362267777672, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72408840 + ... + 72408883.

It is an arithmetic number, because the mean of its divisors is an integer number (651679758).

Almost surely, 2^3185989906 is an apocalyptic number.

3185989906 is a deficient number, since it is larger than the sum of its proper divisors (2027448158).

3185989906 is a wasteful number, since it uses less digits than its factorization.

3185989906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144817736.

The product of its (nonzero) digits is 4199040, while the sum is 58.

The square root of 3185989906 is about 56444.5737516017. The cubic root of 3185989906 is about 1471.4588854776.

The spelling of 3185989906 in words is "three billion, one hundred eighty-five million, nine hundred eighty-nine thousand, nine hundred six".