87968527643 has 2 divisors, whose sum is σ = 87968527644. Its totient is φ = 87968527642.

The previous prime is 87968527571. The next prime is 87968527667. The reversal of 87968527643 is 34672586978.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87968527643 - 2¹² = 87968523547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87968527643.

It is not a weakly prime, because it can be changed into another prime (87968527043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43984263821 + 43984263822.

It is an arithmetic number, because the mean of its divisors is an integer number (43984263822).

Almost surely, 2^87968527643 is an apocalyptic number.

87968527643 is a deficient number, since it is larger than the sum of its proper divisors (1).

87968527643 is an equidigital number, since it uses as much as digits as its factorization.

87968527643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 121927680, while the sum is 65.

The spelling of 87968527643 in words is "eighty-seven billion, nine hundred sixty-eight million, five hundred twenty-seven thousand, six hundred forty-three".