30643207461 has 6 divisors (see below), whose sum is σ = 44262410790. Its totient is φ = 20428804968.

The previous prime is 30643207459. The next prime is 30643207477. The reversal of 30643207461 is 16470234603.

It is a happy number.

30643207461 is a `hidden beast` number, since 3 + 0 + 643 + 2 + 0 + 7 + 4 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27053999361 + 3589208100 = 164481^2 + 59910^2 .

It is not a de Polignac number, because 30643207461 - 2¹ = 30643207459 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30643207481) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1702400406 + ... + 1702400423.

It is an arithmetic number, because the mean of its divisors is an integer number (7377068465).

Almost surely, 2^30643207461 is an apocalyptic number.

It is an amenable number.

30643207461 is a deficient number, since it is larger than the sum of its proper divisors (13619203329).

30643207461 is a wasteful number, since it uses less digits than its factorization.

30643207461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404800835 (or 3404800832 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The spelling of 30643207461 in words is "thirty billion, six hundred forty-three million, two hundred seven thousand, four hundred sixty-one".