30509405057 has 2 divisors, whose sum is σ = 30509405058. Its totient is φ = 30509405056.

The previous prime is 30509405051. The next prime is 30509405077. The reversal of 30509405057 is 75050490503.

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., 27998994241 + 2510410816 = 167329^2 + 50104^2 .

It is a cyclic number.

It is not a de Polignac number, because 30509405057 - 2⁶ = 30509404993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30509405057.

It is not a weakly prime, because it can be changed into another prime (30509405051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15254702528 + 15254702529.

It is an arithmetic number, because the mean of its divisors is an integer number (15254702529).

Almost surely, 2^30509405057 is an apocalyptic number.

It is an amenable number.

30509405057 is a deficient number, since it is larger than the sum of its proper divisors (1).

30509405057 is an equidigital number, since it uses as much as digits as its factorization.

30509405057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94500, while the sum is 38.

The spelling of 30509405057 in words is "thirty billion, five hundred nine million, four hundred five thousand, fifty-seven".