287078665907563 has 2 divisors, whose sum is σ = 287078665907564. Its totient is φ = 287078665907562.

The previous prime is 287078665907549. The next prime is 287078665907603. The reversal of 287078665907563 is 365709566870782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 287078665907563 - 2²⁹ = 287078129036651 is a prime.

It is not a weakly prime, because it can be changed into another prime (287078665907533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143539332953781 + 143539332953782.

It is an arithmetic number, because the mean of its divisors is an integer number (143539332953782).

Almost surely, 2^{287078665907563} is an apocalyptic number.

287078665907563 is a deficient number, since it is larger than the sum of its proper divisors (1).

287078665907563 is an equidigital number, since it uses as much as digits as its factorization.

287078665907563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6401203200, while the sum is 79.

The spelling of 287078665907563 in words is "two hundred eighty-seven trillion, seventy-eight billion, six hundred sixty-five million, nine hundred seven thousand, five hundred sixty-three".