287802570961 has 2 divisors, whose sum is σ = 287802570962. Its totient is φ = 287802570960.

The previous prime is 287802570919. The next prime is 287802570967. The reversal of 287802570961 is 169075208782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 282152192400 + 5650378561 = 531180^2 + 75169^2 .

It is a cyclic number.

It is not a de Polignac number, because 287802570961 - 2¹⁵ = 287802538193 is a prime.

It is a super-2 number, since 2×287802570961² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (287802570967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143901285480 + 143901285481.

It is an arithmetic number, because the mean of its divisors is an integer number (143901285481).

Almost surely, 2^287802570961 is an apocalyptic number.

It is an amenable number.

287802570961 is a deficient number, since it is larger than the sum of its proper divisors (1).

287802570961 is an equidigital number, since it uses as much as digits as its factorization.

287802570961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3386880, while the sum is 55.

The spelling of 287802570961 in words is "two hundred eighty-seven billion, eight hundred two million, five hundred seventy thousand, nine hundred sixty-one".