87659722663 has 2 divisors, whose sum is σ = 87659722664. Its totient is φ = 87659722662.

The previous prime is 87659722639. The next prime is 87659722691. The reversal of 87659722663 is 36622795678.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87659722663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87659722603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43829861331 + 43829861332.

It is an arithmetic number, because the mean of its divisors is an integer number (43829861332).

Almost surely, 2^87659722663 is an apocalyptic number.

87659722663 is a deficient number, since it is larger than the sum of its proper divisors (1).

87659722663 is an equidigital number, since it uses as much as digits as its factorization.

87659722663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45722880, while the sum is 61.

The spelling of 87659722663 in words is "eighty-seven billion, six hundred fifty-nine million, seven hundred twenty-two thousand, six hundred sixty-three".