30485853997 has 2 divisors, whose sum is σ = 30485853998. Its totient is φ = 30485853996.

The previous prime is 30485853971. The next prime is 30485854001. The reversal of 30485853997 is 79935858403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22996509316 + 7489344681 = 151646^2 + 86541^2 .

It is a cyclic number.

It is not a de Polignac number, because 30485853997 - 2⁷ = 30485853869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30485851997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15242926998 + 15242926999.

It is an arithmetic number, because the mean of its divisors is an integer number (15242926999).

Almost surely, 2^30485853997 is an apocalyptic number.

It is an amenable number.

30485853997 is a deficient number, since it is larger than the sum of its proper divisors (1).

30485853997 is an equidigital number, since it uses as much as digits as its factorization.

30485853997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32659200, while the sum is 61.

The spelling of 30485853997 in words is "thirty billion, four hundred eighty-five million, eight hundred fifty-three thousand, nine hundred ninety-seven".