99394463473057 has 2 divisors, whose sum is σ = 99394463473058. Its totient is φ = 99394463473056.

The previous prime is 99394463473027. The next prime is 99394463473061. The reversal of 99394463473057 is 75037436449399.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90420149120401 + 8974314352656 = 9508951^2 + 2995716^2 .

It is an emirp because it is prime and its reverse (75037436449399) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99394463473057 - 2⁴³ = 90598370450849 is a prime.

It is not a weakly prime, because it can be changed into another prime (99394463473027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49697231736528 + 49697231736529.

It is an arithmetic number, because the mean of its divisors is an integer number (49697231736529).

Almost surely, 2^{99394463473057} is an apocalyptic number.

It is an amenable number.

99394463473057 is a deficient number, since it is larger than the sum of its proper divisors (1).

99394463473057 is an equidigital number, since it uses as much as digits as its factorization.

99394463473057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1851776640, while the sum is 73.

The spelling of 99394463473057 in words is "ninety-nine trillion, three hundred ninety-four billion, four hundred sixty-three million, four hundred seventy-three thousand, fifty-seven".