4987307761 has 2 divisors, whose sum is σ = 4987307762. Its totient is φ = 4987307760.

The previous prime is 4987307729. The next prime is 4987307779. The reversal of 4987307761 is 1677037894.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3873817600 + 1113490161 = 62240^2 + 33369^2 .

It is a cyclic number.

It is not a de Polignac number, because 4987307761 - 2⁵ = 4987307729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4987307699 and 4987307708.

It is not a weakly prime, because it can be changed into another prime (4987307861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2493653880 + 2493653881.

It is an arithmetic number, because the mean of its divisors is an integer number (2493653881).

Almost surely, 2^4987307761 is an apocalyptic number.

It is an amenable number.

4987307761 is a deficient number, since it is larger than the sum of its proper divisors (1).

4987307761 is an equidigital number, since it uses as much as digits as its factorization.

4987307761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1778112, while the sum is 52.

The square root of 4987307761 is about 70620.8734086460. The cubic root of 4987307761 is about 1708.5278257649.

The spelling of 4987307761 in words is "four billion, nine hundred eighty-seven million, three hundred seven thousand, seven hundred sixty-one".