30682981509812 has 12 divisors (see below), whose sum is σ = 53701255623876. Its totient is φ = 15339765617280.

The previous prime is 30682981509731. The next prime is 30682981509823. The reversal of 30682981509812 is 21890518928603.

It can be written as a sum of positive squares in 2 ways, for example, as 16157537886736 + 14525443623076 = 4019644^2 + 3811226^2 .

It is a congruent number.

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, 431244389 + ... + 431315532.

It is an arithmetic number, because the mean of its divisors is an integer number (4475104635323).

Almost surely, 2^{30682981509812} is an apocalyptic number.

It is an amenable number.

30682981509812 is a deficient number, since it is larger than the sum of its proper divisors (23018274114064).

30682981509812 is a wasteful number, since it uses less digits than its factorization.

30682981509812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862568818 (or 862568816 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 62.

The spelling of 30682981509812 in words is "thirty trillion, six hundred eighty-two billion, nine hundred eighty-one million, five hundred nine thousand, eight hundred twelve".