99520324487 has 2 divisors, whose sum is σ = 99520324488. Its totient is φ = 99520324486.

The previous prime is 99520324403. The next prime is 99520324489. The reversal of 99520324487 is 78442302599.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99520324487 - 2⁸ = 99520324231 is a prime.

Together with 99520324489, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99520324489) 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, 49760162243 + 49760162244.

It is an arithmetic number, because the mean of its divisors is an integer number (49760162244).

Almost surely, 2^99520324487 is an apocalyptic number.

99520324487 is a deficient number, since it is larger than the sum of its proper divisors (1).

99520324487 is an equidigital number, since it uses as much as digits as its factorization.

99520324487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 99520324487 in words is "ninety-nine billion, five hundred twenty million, three hundred twenty-four thousand, four hundred eighty-seven".