87895367969 has 2 divisors, whose sum is σ = 87895367970. Its totient is φ = 87895367968.

The previous prime is 87895367947. The next prime is 87895367993. The reversal of 87895367969 is 96976359878.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82759782400 + 5135585569 = 287680^2 + 71663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87895367969 is a prime.

It is a super-2 number, since 2×87895367969² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87895367969.

It is not a weakly prime, because it can be changed into another prime (87895361969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43947683984 + 43947683985.

It is an arithmetic number, because the mean of its divisors is an integer number (43947683985).

Almost surely, 2^87895367969 is an apocalyptic number.

It is an amenable number.

87895367969 is a deficient number, since it is larger than the sum of its proper divisors (1).

87895367969 is an equidigital number, since it uses as much as digits as its factorization.

87895367969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1234517760, while the sum is 77.

The spelling of 87895367969 in words is "eighty-seven billion, eight hundred ninety-five million, three hundred sixty-seven thousand, nine hundred sixty-nine".