99473689087 has 2 divisors, whose sum is σ = 99473689088. Its totient is φ = 99473689086.

The previous prime is 99473689079. The next prime is 99473689123. The reversal of 99473689087 is 78098637499.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99473689087 - 2³ = 99473689079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99473689037) 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, 49736844543 + 49736844544.

It is an arithmetic number, because the mean of its divisors is an integer number (49736844544).

Almost surely, 2^99473689087 is an apocalyptic number.

99473689087 is a deficient number, since it is larger than the sum of its proper divisors (1).

99473689087 is an equidigital number, since it uses as much as digits as its factorization.

99473689087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 164602368, while the sum is 70.

The spelling of 99473689087 in words is "ninety-nine billion, four hundred seventy-three million, six hundred eighty-nine thousand, eighty-seven".