145477583546489 has 2 divisors, whose sum is σ = 145477583546490. Its totient is φ = 145477583546488.

The previous prime is 145477583546459. The next prime is 145477583546497. The reversal of 145477583546489 is 984645385774541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127683672078400 + 17793911468089 = 11299720^2 + 4218283^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145477583546489 is a prime.

It is not a weakly prime, because it can be changed into another prime (145477583546419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72738791773244 + 72738791773245.

It is an arithmetic number, because the mean of its divisors is an integer number (72738791773245).

Almost surely, 2^{145477583546489} is an apocalyptic number.

It is an amenable number.

145477583546489 is a deficient number, since it is larger than the sum of its proper divisors (1).

145477583546489 is an equidigital number, since it uses as much as digits as its factorization.

145477583546489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16257024000, while the sum is 80.

The spelling of 145477583546489 in words is "one hundred forty-five trillion, four hundred seventy-seven billion, five hundred eighty-three million, five hundred forty-six thousand, four hundred eighty-nine".