87428068666963 has 2 divisors, whose sum is σ = 87428068666964. Its totient is φ = 87428068666962.

The previous prime is 87428068666903. The next prime is 87428068667029. The reversal of 87428068666963 is 36966686082478.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87428068666963 is a prime.

It is not a weakly prime, because it can be changed into another prime (87428068666903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43714034333481 + 43714034333482.

It is an arithmetic number, because the mean of its divisors is an integer number (43714034333482).

Almost surely, 2^{87428068666963} is an apocalyptic number.

87428068666963 is a deficient number, since it is larger than the sum of its proper divisors (1).

87428068666963 is an equidigital number, since it uses as much as digits as its factorization.

87428068666963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6019743744, while the sum is 79.

The spelling of 87428068666963 in words is "eighty-seven trillion, four hundred twenty-eight billion, sixty-eight million, six hundred sixty-six thousand, nine hundred sixty-three".