99349893887 has 2 divisors, whose sum is σ = 99349893888. Its totient is φ = 99349893886.

The previous prime is 99349893829. The next prime is 99349893899. The reversal of 99349893887 is 78839894399.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99349893887 - 2¹⁸ = 99349631743 is a prime.

It is a super-4 number, since 4×99349893887⁴ (a number of 45 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99349893827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49674946943 + 49674946944.

It is an arithmetic number, because the mean of its divisors is an integer number (49674946944).

Almost surely, 2^99349893887 is an apocalyptic number.

99349893887 is a deficient number, since it is larger than the sum of its proper divisors (1).

99349893887 is an equidigital number, since it uses as much as digits as its factorization.

99349893887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846526464, while the sum is 77.

The spelling of 99349893887 in words is "ninety-nine billion, three hundred forty-nine million, eight hundred ninety-three thousand, eight hundred eighty-seven".