7513663987 has 2 divisors, whose sum is σ = 7513663988. Its totient is φ = 7513663986.

The previous prime is 7513663979. The next prime is 7513664077. The reversal of 7513663987 is 7893663157.

7513663987 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7513663987 - 2³ = 7513663979 is a prime.

It is not a weakly prime, because it can be changed into another prime (7513664987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3756831993 + 3756831994.

It is an arithmetic number, because the mean of its divisors is an integer number (3756831994).

Almost surely, 2^7513663987 is an apocalyptic number.

7513663987 is a deficient number, since it is larger than the sum of its proper divisors (1).

7513663987 is an equidigital number, since it uses as much as digits as its factorization.

7513663987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5715360, while the sum is 55.

The square root of 7513663987 is about 86681.3935455586. The cubic root of 7513663987 is about 1958.6218260934.

The spelling of 7513663987 in words is "seven billion, five hundred thirteen million, six hundred sixty-three thousand, nine hundred eighty-seven".