30461783057 has 2 divisors, whose sum is σ = 30461783058. Its totient is φ = 30461783056.

The previous prime is 30461783029. The next prime is 30461783063. The reversal of 30461783057 is 75038716403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22226039056 + 8235744001 = 149084^2 + 90751^2 .

It is a cyclic number.

It is not a de Polignac number, because 30461783057 - 2³⁰ = 29388041233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30461782999 and 30461783017.

It is not a weakly prime, because it can be changed into another prime (30461783017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15230891528 + 15230891529.

It is an arithmetic number, because the mean of its divisors is an integer number (15230891529).

Almost surely, 2^30461783057 is an apocalyptic number.

It is an amenable number.

30461783057 is a deficient number, since it is larger than the sum of its proper divisors (1).

30461783057 is an equidigital number, since it uses as much as digits as its factorization.

30461783057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 30461783057 in words is "thirty billion, four hundred sixty-one million, seven hundred eighty-three thousand, fifty-seven".