87809934323 has 2 divisors, whose sum is σ = 87809934324. Its totient is φ = 87809934322.

The previous prime is 87809934287. The next prime is 87809934347. The reversal of 87809934323 is 32343990878.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87809934323 - 2²² = 87805740019 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (87809934383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43904967161 + 43904967162.

It is an arithmetic number, because the mean of its divisors is an integer number (43904967162).

Almost surely, 2^87809934323 is an apocalyptic number.

87809934323 is a deficient number, since it is larger than the sum of its proper divisors (1).

87809934323 is an equidigital number, since it uses as much as digits as its factorization.

87809934323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7838208, while the sum is 56.

The spelling of 87809934323 in words is "eighty-seven billion, eight hundred nine million, nine hundred thirty-four thousand, three hundred twenty-three".