30661974207 has 6 divisors (see below), whose sum is σ = 44289518312. Its totient is φ = 20441316132.

The previous prime is 30661974169. The next prime is 30661974221. The reversal of 30661974207 is 70247916603.

30661974207 is a `hidden beast` number, since 3 + 0 + 6 + 619 + 7 + 4 + 20 + 7 = 666.

It is not a de Polignac number, because 30661974207 - 2²² = 30657779903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30661972207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1703443003 + ... + 1703443020.

Almost surely, 2^30661974207 is an apocalyptic number.

30661974207 is a deficient number, since it is larger than the sum of its proper divisors (13627544105).

30661974207 is a wasteful number, since it uses less digits than its factorization.

30661974207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406886029 (or 3406886026 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 30661974207 in words is "thirty billion, six hundred sixty-one million, nine hundred seventy-four thousand, two hundred seven".