305352140447 has 2 divisors, whose sum is σ = 305352140448. Its totient is φ = 305352140446.

The previous prime is 305352140417. The next prime is 305352140459. The reversal of 305352140447 is 744041253503.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 305352140447 - 2¹⁸ = 305351878303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 305352140447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (305352140417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152676070223 + 152676070224.

It is an arithmetic number, because the mean of its divisors is an integer number (152676070224).

Almost surely, 2^305352140447 is an apocalyptic number.

305352140447 is a deficient number, since it is larger than the sum of its proper divisors (1).

305352140447 is an equidigital number, since it uses as much as digits as its factorization.

305352140447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201600, while the sum is 38.

The spelling of 305352140447 in words is "three hundred five billion, three hundred fifty-two million, one hundred forty thousand, four hundred forty-seven".