99938406297 has 16 divisors (see below), whose sum is σ = 133942370048. Its totient is φ = 66280757760.

The previous prime is 99938406283. The next prime is 99938406307. The reversal of 99938406297 is 79260483999.

It is not a de Polignac number, because 99938406297 - 2²⁴ = 99921629081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99938406247) 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 in 15 ways as a sum of consecutive naturals, for example, 455823 + ... + 638475.

It is an arithmetic number, because the mean of its divisors is an integer number (8371398128).

Almost surely, 2^99938406297 is an apocalyptic number.

It is an amenable number.

99938406297 is a deficient number, since it is larger than the sum of its proper divisors (34003963751).

99938406297 is a wasteful number, since it uses less digits than its factorization.

99938406297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183600.

The product of its (nonzero) digits is 52907904, while the sum is 66.

The spelling of 99938406297 in words is "ninety-nine billion, nine hundred thirty-eight million, four hundred six thousand, two hundred ninety-seven".