30305662461 has 10 divisors (see below), whose sum is σ = 45271421822. Its totient is φ = 20203774920.

The previous prime is 30305662451. The next prime is 30305662487. The reversal of 30305662461 is 16426650303.

30305662461 is a `hidden beast` number, since 3 + 0 + 30 + 566 + 2 + 4 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16468845561 + 13836816900 = 128331^2 + 117630^2 .

It is not a de Polignac number, because 30305662461 - 2⁷ = 30305662333 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 (30305662411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 187071910 + ... + 187072071.

Almost surely, 2^30305662461 is an apocalyptic number.

It is an amenable number.

30305662461 is a deficient number, since it is larger than the sum of its proper divisors (14965759361).

30305662461 is an equidigital number, since it uses as much as digits as its factorization.

30305662461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374143993 (or 374143984 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 30305662461 in words is "thirty billion, three hundred five million, six hundred sixty-two thousand, four hundred sixty-one".