99378487337 has 2 divisors, whose sum is σ = 99378487338. Its totient is φ = 99378487336.

The previous prime is 99378487333. The next prime is 99378487379. The reversal of 99378487337 is 73378487399.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95471112256 + 3907375081 = 308984^2 + 62509^2 .

It is a cyclic number.

It is not a de Polignac number, because 99378487337 - 2² = 99378487333 is a prime.

It is not a weakly prime, because it can be changed into another prime (99378487333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49689243668 + 49689243669.

It is an arithmetic number, because the mean of its divisors is an integer number (49689243669).

Almost surely, 2^99378487337 is an apocalyptic number.

It is an amenable number.

99378487337 is a deficient number, since it is larger than the sum of its proper divisors (1).

99378487337 is an equidigital number, since it uses as much as digits as its factorization.

99378487337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192036096, while the sum is 68.

The spelling of 99378487337 in words is "ninety-nine billion, three hundred seventy-eight million, four hundred eighty-seven thousand, three hundred thirty-seven".