401242847587 has 2 divisors, whose sum is σ = 401242847588. Its totient is φ = 401242847586.

The previous prime is 401242847527. The next prime is 401242847611. The reversal of 401242847587 is 785748242104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401242847587 - 2³¹ = 399095363939 is a prime.

It is not a weakly prime, because it can be changed into another prime (401242847507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200621423793 + 200621423794.

It is an arithmetic number, because the mean of its divisors is an integer number (200621423794).

Almost surely, 2^401242847587 is an apocalyptic number.

401242847587 is a deficient number, since it is larger than the sum of its proper divisors (1).

401242847587 is an equidigital number, since it uses as much as digits as its factorization.

401242847587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4014080, while the sum is 52.

The spelling of 401242847587 in words is "four hundred one billion, two hundred forty-two million, eight hundred forty-seven thousand, five hundred eighty-seven".