4128562987 has 2 divisors, whose sum is σ = 4128562988. Its totient is φ = 4128562986.

The previous prime is 4128562979. The next prime is 4128563017. The reversal of 4128562987 is 7892658214.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4128562987 - 2³ = 4128562979 is a prime.

It is not a weakly prime, because it can be changed into another prime (4128562927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2064281493 + 2064281494.

It is an arithmetic number, because the mean of its divisors is an integer number (2064281494).

Almost surely, 2^4128562987 is an apocalyptic number.

4128562987 is a deficient number, since it is larger than the sum of its proper divisors (1).

4128562987 is an equidigital number, since it uses as much as digits as its factorization.

4128562987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1935360, while the sum is 52.

The square root of 4128562987 is about 64253.8947224213. The cubic root of 4128562987 is about 1604.2287857758.

The spelling of 4128562987 in words is "four billion, one hundred twenty-eight million, five hundred sixty-two thousand, nine hundred eighty-seven".