30245900681 has 2 divisors, whose sum is σ = 30245900682. Its totient is φ = 30245900680.

The previous prime is 30245900621. The next prime is 30245900759. The reversal of 30245900681 is 18600954203.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24442508281 + 5803392400 = 156341^2 + 76180^2 .

It is a cyclic number.

It is not a de Polignac number, because 30245900681 - 2¹⁰ = 30245899657 is a prime.

It is a super-2 number, since 2×30245900681² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30245900621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15122950340 + 15122950341.

It is an arithmetic number, because the mean of its divisors is an integer number (15122950341).

Almost surely, 2^30245900681 is an apocalyptic number.

It is an amenable number.

30245900681 is a deficient number, since it is larger than the sum of its proper divisors (1).

30245900681 is an equidigital number, since it uses as much as digits as its factorization.

30245900681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 30245900681 in words is "thirty billion, two hundred forty-five million, nine hundred thousand, six hundred eighty-one".