87223642943 has 2 divisors, whose sum is σ = 87223642944. Its totient is φ = 87223642942.

The previous prime is 87223642937. The next prime is 87223642951. The reversal of 87223642943 is 34924632278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87223642943 - 2¹² = 87223638847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87223642891 and 87223642900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87223642903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43611821471 + 43611821472.

It is an arithmetic number, because the mean of its divisors is an integer number (43611821472).

Almost surely, 2^87223642943 is an apocalyptic number.

87223642943 is a deficient number, since it is larger than the sum of its proper divisors (1).

87223642943 is an equidigital number, since it uses as much as digits as its factorization.

87223642943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 50.

The spelling of 87223642943 in words is "eighty-seven billion, two hundred twenty-three million, six hundred forty-two thousand, nine hundred forty-three".