487623544621 has 2 divisors, whose sum is σ = 487623544622. Its totient is φ = 487623544620.

The previous prime is 487623544601. The next prime is 487623544627. The reversal of 487623544621 is 126445326784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 302732144521 + 184891400100 = 550211^2 + 429990^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-487623544621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (487623544627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243811772310 + 243811772311.

It is an arithmetic number, because the mean of its divisors is an integer number (243811772311).

Almost surely, 2^487623544621 is an apocalyptic number.

It is an amenable number.

487623544621 is a deficient number, since it is larger than the sum of its proper divisors (1).

487623544621 is an equidigital number, since it uses as much as digits as its factorization.

487623544621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7741440, while the sum is 52.

The spelling of 487623544621 in words is "four hundred eighty-seven billion, six hundred twenty-three million, five hundred forty-four thousand, six hundred twenty-one".