30981182806 has 32 divisors (see below), whose sum is σ = 56250573120. Its totient is φ = 12493095936.

The previous prime is 30981182801. The next prime is 30981182819. The reversal of 30981182806 is 60828118903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30981182801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 933066 + ... + 965698.

It is an arithmetic number, because the mean of its divisors is an integer number (1757830410).

Almost surely, 2^30981182806 is an apocalyptic number.

30981182806 is a deficient number, since it is larger than the sum of its proper divisors (25269390314).

30981182806 is a wasteful number, since it uses less digits than its factorization.

30981182806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36648.

The product of its (nonzero) digits is 165888, while the sum is 46.

The spelling of 30981182806 in words is "thirty billion, nine hundred eighty-one million, one hundred eighty-two thousand, eight hundred six".