30143799457 has 2 divisors, whose sum is σ = 30143799458. Its totient is φ = 30143799456.

The previous prime is 30143799451. The next prime is 30143799473. The reversal of 30143799457 is 75499734103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28835096481 + 1308702976 = 169809^2 + 36176^2 .

It is a cyclic number.

It is not a de Polignac number, because 30143799457 - 2²³ = 30135410849 is a prime.

It is not a weakly prime, because it can be changed into another prime (30143799451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15071899728 + 15071899729.

It is an arithmetic number, because the mean of its divisors is an integer number (15071899729).

Almost surely, 2^30143799457 is an apocalyptic number.

It is an amenable number.

30143799457 is a deficient number, since it is larger than the sum of its proper divisors (1).

30143799457 is an equidigital number, since it uses as much as digits as its factorization.

30143799457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2857680, while the sum is 52.

The spelling of 30143799457 in words is "thirty billion, one hundred forty-three million, seven hundred ninety-nine thousand, four hundred fifty-seven".