30722460257 has 2 divisors, whose sum is σ = 30722460258. Its totient is φ = 30722460256.

The previous prime is 30722460211. The next prime is 30722460269. The reversal of 30722460257 is 75206422703.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29879196736 + 843263521 = 172856^2 + 29039^2 .

It is a cyclic number.

It is not a de Polignac number, because 30722460257 - 2²² = 30718265953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30722460257.

It is not a weakly prime, because it can be changed into another prime (30722460557) 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, 15361230128 + 15361230129.

It is an arithmetic number, because the mean of its divisors is an integer number (15361230129).

Almost surely, 2^30722460257 is an apocalyptic number.

It is an amenable number.

30722460257 is a deficient number, since it is larger than the sum of its proper divisors (1).

30722460257 is an equidigital number, since it uses as much as digits as its factorization.

30722460257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 38.

The spelling of 30722460257 in words is "thirty billion, seven hundred twenty-two million, four hundred sixty thousand, two hundred fifty-seven".