487584481949 has 2 divisors, whose sum is σ = 487584481950. Its totient is φ = 487584481948.

The previous prime is 487584481883. The next prime is 487584482003. The reversal of 487584481949 is 949184485784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 399127015225 + 88457466724 = 631765^2 + 297418^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-487584481949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (487584481249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243792240974 + 243792240975.

It is an arithmetic number, because the mean of its divisors is an integer number (243792240975).

Almost surely, 2^487584481949 is an apocalyptic number.

It is an amenable number.

487584481949 is a deficient number, since it is larger than the sum of its proper divisors (1).

487584481949 is an equidigital number, since it uses as much as digits as its factorization.

487584481949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 371589120, while the sum is 71.

The spelling of 487584481949 in words is "four hundred eighty-seven billion, five hundred eighty-four million, four hundred eighty-one thousand, nine hundred forty-nine".