4278047042587 has 2 divisors, whose sum is σ = 4278047042588. Its totient is φ = 4278047042586.

The previous prime is 4278047042579. The next prime is 4278047042627. The reversal of 4278047042587 is 7852407408724.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4278047042587 - 2³ = 4278047042579 is a prime.

It is not a weakly prime, because it can be changed into another prime (4278047042557) 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, 2139023521293 + 2139023521294.

It is an arithmetic number, because the mean of its divisors is an integer number (2139023521294).

Almost surely, 2^{4278047042587} is an apocalyptic number.

4278047042587 is a deficient number, since it is larger than the sum of its proper divisors (1).

4278047042587 is an equidigital number, since it uses as much as digits as its factorization.

4278047042587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28098560, while the sum is 58.

The spelling of 4278047042587 in words is "four trillion, two hundred seventy-eight billion, forty-seven million, forty-two thousand, five hundred eighty-seven".