9385878899 has 2 divisors, whose sum is σ = 9385878900. Its totient is φ = 9385878898.

The previous prime is 9385878883. The next prime is 9385878941. The reversal of 9385878899 is 9988785839.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9385878899 - 2⁴ = 9385878883 is a prime.

It is not a weakly prime, because it can be changed into another prime (9385878499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4692939449 + 4692939450.

It is an arithmetic number, because the mean of its divisors is an integer number (4692939450).

Almost surely, 2^9385878899 is an apocalyptic number.

9385878899 is a deficient number, since it is larger than the sum of its proper divisors (1).

9385878899 is an equidigital number, since it uses as much as digits as its factorization.

9385878899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 313528320, while the sum is 74.

The square root of 9385878899 is about 96880.7457599290. The cubic root of 9385878899 is about 2109.3969585333.

The spelling of 9385878899 in words is "nine billion, three hundred eighty-five million, eight hundred seventy-eight thousand, eight hundred ninety-nine".