7845830385487 has 2 divisors, whose sum is σ = 7845830385488. Its totient is φ = 7845830385486.

The previous prime is 7845830385373. The next prime is 7845830385541.

7845830385487 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7845830385487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7845830385787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3922915192743 + 3922915192744.

It is an arithmetic number, because the mean of its divisors is an integer number (3922915192744).

Almost surely, 2^{7845830385487} is an apocalyptic number.

7845830385487 is a deficient number, since it is larger than the sum of its proper divisors (1).

7845830385487 is an equidigital number, since it uses as much as digits as its factorization.

7845830385487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 722534400, while the sum is 70.

The spelling of 7845830385487 in words is "seven trillion, eight hundred forty-five billion, eight hundred thirty million, three hundred eighty-five thousand, four hundred eighty-seven".